Answer: 40 and 50-2x.
Step-by-step explanation: you multiply 5*2=10, and subtract that from 50. You would do the same with x, to get 2*x=2x. but you can't subtract 2x from 50 without knowing x, so you leave it as 50-2x.
PLEASE HELP MEEE!!! WILL GIVE BRAINLIEST!!!
Given any shape, which series of transformations would result in an image being similar but not congruent to its preimage?
Reflection over the x-axis, reflection over the y-axis, translation up 3
Reflection over the x-axis, reflection over the y-axis, reflection over the x-axis
Reflection over the x-axis, reflection over the y-axis, dilation by a scale factor of 3
Reflection over the x-axis, reflection over the y-axis, rotation of 180° counterclockwise
The first option is correct. The series of transformations that would result in an image being similar but not congruent to its preimage is reflection over the x-axis, reflection over the y-axis, and translation up 3.
What is congruency?The state of being in agreement or concord is referred to as congruency. It is a notion that is employed in many fields of life, including mathematics, psychology, and philosophy. Congruency is the belief that in order for an idea, system, or process to be effective, all of its components must agree with each other.
Reflection along the x-axis: This transformation includes reflecting the shape along an imaginary line drawn across the coordinate plane's origin. This produces a mirror copy of the original shape, with the left side of the shape mirrored to the right side and the right side of the shape reflected to the left.
Reflection along the y-axis: This transformation includes reflecting the shape along an imaginary line drawn across the coordinate plane's origin. This produces a mirror copy of the original shape, with the top side of the shape reflecting to the bottom side and the bottom side of the shape reflecting to the top side.
Translation up 3: In this transformation, the shape is moved up by a given number of units. The form will be pushed forward three units without affecting its size or orientation as a result of this.
Reflection over the x-axis, reflection over the y-axis, reflection over the x-axis: This transformation requires reflecting the shape twice across an imaginary line drawn through the coordinate plane's origin. This produces a mirror copy of the original shape, with the left side of the shape mirrored to the right side and the right side of the shape reflected to the left.
Dilation by a scale factor of 3: This modification enlarges or contracts the shape by a certain scale factor. This causes the form to be three times larger or smaller than it was before, without affecting its orientation.
180° anticlockwise rotation: This transformation includes rotating the shape by a given amount. This will spin the form 180° anticlockwise without affecting its size or orientation.
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PLEASE HELP ME WITH THIS
Answer: 48 cups
Step-by-step explanation: The way to scale a recipe by number of servings is to multiply the original amount by the desired serving size and then divide by the original serving size.
b) The average age of Kishan and Dolma is 15 years and that of Dolma and Shashwat is 14 years. If Kishan is 17 years old, find the age of Dolma and Shashwat.
Step-by-step explanation:
average means the sum of all values divided by a number of values
Compute the number of permutations of given set a = x | x is an integer and x2 < 16 , r =4
There are 840 permutations of the set a, taken 4 at a time.
What is integer ?
An integer is the number zero, a positive natural number or a negative integer with a minus sign. The negative numbers are the additive inverses of the corresponding positive numbers.
A permutation of a set is an arrangement of its elements in a specific order. To find the number of permutations of a set with n elements, taken r at a time, the formula is given by n! / (n - r)!, where n! is the factorial of n.
Given the set a = {x | x is an integer and x^2 < 16}, we can find the elements of the set:
x^2 < 16
x = ±1, ±2, ±3, ±4
So the set a has 8 elements: {-4, -3, -2, -1, 1, 2, 3, 4}.
The number of permutations of a set with 8 elements, taken 4 at a time, is given by 8! / (8 - 4)! = 8! / 4! = 40320 / 24 = 840.
Therefore, there are 840 permutations of the set a, taken 4 at a time.
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If you were comparing human organisms to cities, what would the atom be?
We can compare atom to the peoples that live, work and control the city.
What is atom?The smallest part of a substance that cannot be broken down chemically is called atom.Each atom has a nucleus (center) made up of protons (positive particles) and neutrons (particles with no charge). Electrons (negative particles) move around the nucleus.Given is you were comparing human organisms to cities.
Atom is important for the existence of human body. If the atoms would not be there, the human body would not exist. Similarly, a city exist because of the people living in the city. So, we can compare atom to the peoples that live, work and control the city.
Therefore, we can compare atom to the peoples that live, work and control the city.
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Please help, I'm having a hard time.
Answer: $4.28
Step-by-step explanation:
We can set up the following equation to find the cost of the admission of play:
(14 students x $2x admission) + (14 students x $2 program) = (22 students x $x admission) + (22 students x $4 program)
We know the admission cost for the play is twice that of the musical, so we can substitute that into the equation:
(14 students x $2x admission) + (14 students x $2 program) = (22 students x ($2x/2) admission) + (22 students x $4 program)
Simplifying the equation:
28x + 28 = 22x + 88
Solving for x:
28x + 28 = 22x + 88
28x - 22x = 88 - 28
6x = 60
x = 60/6
So, x = 10 is the solution of the equation.
And I got $2.14 from x = 60/28 = 2.14
That was the value that makes the equation true in the first step (14 students x $2x admission) + (14 students x $2 program) = (22 students x $x admission) + (22 students x $4 program)
So x = 2.14 is the price of the musical admission.
x = $2.14
Therefore, the admission cost for each student that is going to the play is $2x = $2.14 x 2 = $4.28.
Please help! Thank you :)
Answer: The last one
Step-by-step explanation: The area of a parallelogram is base x height, so you know the original area of the parallelogram is 2 x 1, which is 2.
Great, so now you have to find the area of the new parallelogram. The question says the base is halved, so the new base is now 1, and the height is quadrupled, so the height is now 4, because 1 x 4 = 4. Plugging that into the equation for the area of a parallelogram, you get an area of 4, because 1 x 4 = 4.
Now, you have to find the ratio between the two areas, and you can see that all the answer choices want the area to be new area:old area. Well, you just solved the new area, and you know the old area, so putting those two in a ratio gives you 4:2. Wait! But you have to simplify it first, or else the answer will be wrong. To simplify, you need to divide both sides by two, since it is the greatest common factor, or GCF. Dividing both sides by 2 will now give you 2:1, which is what the last answer choice says.
How can you use the structure of a two-way frequency table to complete it?
Two values of frequency can be used to calculate the final value in a particular row or column.
What is Statistic?Statistic is the study of mathematics which deal with relations between comprehensive data.
Here,
If a table already includes some data and we need to add more, we simply search for a row or column that holds the additional data. These two values can be used to calculate the final value in a particular row or column.
Thus, two values of frequency can be used to calculate the final value in a particular row or column.
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If by the sas similarity theorem, what is ad? 16 units 20 units 24 units 28 units
If by the SAS similarity theorem, in ΔABE ≈ΔACD the AD is 24 units.
A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total.
Triangles that resemble one another but may not be exactly the same size are said to be comparable triangles. When two objects have the same shape but different sizes, they can be said to be comparable. This indicates that comparable shapes superimpose one another when amplified or demagnified.
If the sides are in the same ratio or proportion and the angles are equal (corresponding angles), two triangles will be similar (corresponding sides). Similar triangles may have varied side lengths when compared individually, but they must all have equal angles and the same ratio of their side lengths.
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A local service organization is wrapping gifts at the mall to raise money for charity. Yesterday, they wrapped 39 small gifts and 16 large gifts, earning a total of $277. Today, they wrapped 35 small gifts and 42 large gifts, and earned $525. How much did they charge to wrap the gifts?
The charge to wrap the small gift is $3 and the charge to wrap the large gift is $10.
What is a linear system of equations?A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.
Given that, a local service organization is wrapping gifts at the mall to raise money for charity.
Let the charge for wrapping small gift be x and the charge for wrapping large gift be y.
Yesterday, they wrapped 39 small gifts and 16 large gifts, earning a total of $277.
39x+16y=277 ------(I)
Today, they wrapped 35 small gifts and 42 large gifts, and earned $525.
35x+42y=525
5x+6y=75 ------(II)
Multiply equation (I) by 3, we get
117x+48y=831 ------(III)
Multiply equation (II) by 8, we get
40x+48y=600 ------(IV)
Now, subtract equation (IV) from the equation (III), we get
117x+48y-(40x+48y)=831-600
77x=231
x=231/77
x=3
Substitute x=3 in equation (II), we get
5(3)+6y=75
6y=60
y=10
Therefore, the charge to wrap the small gift is $3 and the charge to wrap the large gift is $10.
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Henry has been monitoring his mileage. According to last week's driving log, he drove 7 1/2 miles in his car and 1/4 of a mile in his truck. How far did Henry drive last week in all?
Answer: Henry drove 7 3/4 miles last week.
Step-by-step explanation:
First, you need to find the GCF of both numbers which is 4.
7 1/2 -----> 7 2/4
1/4 --------> 1/4
Add the numbers together.
7 3/4
Therefore, Henry drove 7 3/4 miles in total last week. Hope this helps!
Which of the following inventions was developed by early Mesopotamians ?
A.
horse riding
B.
a solar calendar
C.
wheeled carts
D.
boats with rudders
help
Five book of height 7. 5 cm each i tacked over one another what i the total height in (mm) obbtained?
The total height obtained in mm is 375.
Multiplication is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division. The result of a multiplication operation is called a product.
The multiplication of whole numbers may be thought of as repeated addition; that is, the multiplication of two numbers is equivalent to adding as many copies of one of them, the multiplicand, as the quantity of the other one, the multiplier. Both numbers can be referred to as factors.
Height of 1 book = 7.5 cm
Total height of five books stacked together,
=5 x (7 cm) + 5 x (5mm)
= 35cm + 25mm
= 35cm + 20mm + 5mm
= 35cm + 2cm + 5mm (10mm = 1cm)
= 37cm 5mm
= 375 mm
Therefore, the total height obtained in mm is 375.
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You and a group of friends want to know how many students in your
school prefer rap music. There are 320 students in your school. Each person
in the group randomly surveys 20 students. The table shows the results.
Favorite Type of Music
Pop
1
1
2
3
1
Country
4
5
7
3
4
Rock
5
4
3
5
2
Rap
10
10
8
9
13
a. Use each sample to make an estimate for the number of students in your
school who prefer rap music.
B. Describe the center of variation of the estimates
The number of Students like folk music but not rock music = 30 + 6 = 36
What is meant by percentage?10%, a comparative figure denoting one hundredth of any quantity. One percent (symbolized as 1%), being the hundredth component, is represented as 100 percent, while 200 percent signifies twice the amount specified.In essence, percentages are fractions with a denominator of 100. The percent symbol (%) is placed next to a number to indicate that it is a percentage. For instance, you would have received a 75% on the examination if you correctly answered 75 out of 100 questions (75/100). 16-Jan-2023There are 190 pupils overall.
Let R, F, and C stand for a group of students who enjoy classical, folk, and rock music, respectively.
I The percentage of students who don't like any of the three types
= 190 - (90 + 9 + 5 + 10 + 30 + 6 + 20)
= 190 - 170 = 20
(ii) The number of Students like any two types only. = 9 + 6 + 10 = 25
(iii) The number of Students like folk music but not rock music
= 30 + 6 = 36
The complete question is:
A radio station surveyed 190 students to determine the types of music they liked. The survey revealed that 114 liked rock music, 50 liked folk music and 41 liked classical music, 14 liked rock music and folk music, 15 liked rock music and classical music, 11 liked classical music and folk music, 5 liked all the three of music.
Find:
(i) How many did not like any of the 3 types?
(ii) How many liked any two types only?
(iii) How many liked folk music but not rock music?
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A pair of jeans cost $42.00. If the sales tax is 5%, how much will she pay altogether for the jeans?
Step-by-step explanation:
44.10 dollars after the sales tax
Answer: $44.10
Step-by-step explanation:
So to start take $42.00 and multiply it by 5% or 0.05
when you do that you will get 2.10 that is the amount you will add to the 42.00 to see how much it will be
URGENT!
A sociologist is studying the effect of having children within the first two years of marriage on the divorce rate. Using hospital birth records, she selects a random sample of 200 couples that had a child within the first two years of marriage. Following up on these couples, she finds that 80 couples are divorced within five years. Which of the following is closest to the sample size you would need to estimate with a margin of error of 0.02 with 90% confidence? Use p hat= 0.4 from the first sample as an approximation of p.
a. 3842
b. 2305
c. 600
d. 1624
e. 24
Find the value of p that makes the linear graph y = p − 3x pass through the point
where the lines 4x − y = 6 and 2x − 5y = 12 intersect.
Answer: Hi
Step-by-step explanation:
The equation for the line y = p - 3x can be rearranged as y + 3x = p.
Substituting this into the system of equations, we get:
4x - (y + 3x) = 6
4x - y - 3x = 6
x = 6
2x - 5y = 12
2(6) - 5y = 12
12 - 5y = 12
-5y = 0
y = 0
So the point of intersection is (6, 0).
Substituting these values into y = p - 3x, we get:
0 = p - 3(6)
0 = p - 18
p = 18
Therefore, the value of p that makes the line y = p - 3x pass through the point of intersection of the lines 4x - y = 6 and 2x - 5y = 12 is 18.
HELP ASAP! WILL GIVE BRAINLIEST!
determine value of x.
The value of x in the given right triangle is 4.58
What are trigonometric ratios?The trigonometric functions are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.
Given is a right triangle, with an acute angle of 74° and sides 16 and x,
Considering the 74° as reference angle,
Using trigonometric ratio,
We know that, the tangent of an angle in a right triangle is the ratio of the hypotenuse to its base,
Therefore,
tan 74° = 16 / x
x = 16 / tan 74°
x = 4.58
Hence, the value of x in the given right triangle is 4.58
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find the size of the angle marked Q
please could you help me thank you very much
Answer:
Q=70
Step-by-step explanation:
（180-40）/2=70
Answer:
is that 70°
if it is then Q=70
Step-by-step explanation:
because an equilateral angles are the same
 Which 3-dimensional figure is associated with the volume formula?
The 3-dimensional figure is associated with the Volume formula is B)Sphere.
What is volume?
The space taken up by any three-dimensional solid constitutes a volume, to put it simply. A cube, cuboid, cone, cylinder, or sphere can be one of these solids. Cubic units are used to measure the volume of solids. The volume will be given in cubic metres, for instance, if the dimensions are given in metres.
Here the given volume is V= [tex]\frac{4}{3} \pi r^3[/tex]
In given formula we only have r which is radius. Then cylinder , Cone and prism have both radius and height.
Sphere does not have height and volume of the sphere is
=> V= [tex]\frac{4}{3} \pi r^3[/tex]
Hence the correct option is B) sphere.
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how many 2 digit positive integers have 2 different factors
There are 25 2-digit positive integers have 2 different factors
How to determine the 2-digit positive numbersA 2-digit positive integer has two different factors if it is a prime number.
There are 25 prime numbers between 1 and 100.
For example, the prime number 7 has only two factors: 1 and 7. A positive integer that is not prime is called a composite number and has more than two factors.
Therefore, there are 25 2-digit positive integers that have 2 different factors.
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find 30% of 60
give simple working out pls :)
Step-by-step explanation:
To find 30% of 60, you can multiply 60 by 0.30.
Here's the calculation:
60 x 0.30 = 18
So, 30% of 60 is 18.
Of the flags in Nate's Flag Shop, 1/4 are indigo and another 1/12 are green. What fraction of the flags are either indigo or green?
Write your answer as a fraction or as a whole or mixed number.
1/3 is the fraction of the flags are either indigo or green
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
Given that Of the flags in Nate's Flag Shop, 1/4 are indigo and another 1/12 are green.
P(I)=1/4
P(G)=1/12
Fraction of the flags are either indigo or green
P(IUG)=P(I)+P(G)
=1/4+1/12
=3+1/12
=4/12
=1/3
Hence, 1/3 is the fraction of the flags are either indigo or green
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Triangle similarity
Determine if the triangles are similar by Angle-Angle Similarity
The required triangles that are similar by angle-angle similarity are,
(1) ΔCDE ≅ ΔGFE (2) ΔLQP ≅ ΔLMN (3) ΔSTE ≅ ΔCWH
(4) Triangles are not similar. (5) Triangles are not similar.
(6) ΔPXQ ≅ ΔZXY
Similar triangles are those triangles that have similar properties,i.e. angles and proportionality of sides.
Here,
(1)
Consider ΔCDE and ΔGFE
∠C = ∠G [alternate interior angle of parallel lines]
∠CED = ∠GEF [opposite angles]
There, for ΔCDE ≅ ΔGFE bu AA postulate.
Similarly,
(2) ΔLQP ≅ ΔLMN
(3) ΔSTE ≅ ΔCWH
(4) Triangles are not similar.
(5) Triangles are not similar.
(6) ΔPXQ ≅ ΔZXY
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plssssssssssss help meeeeee on this
Using a trigonometric relation, we can see that the measure of angle W is 22.62°.
How to find the measure of angle W?We can see a right triangle where we know the measures of all of its sides. Then we can use the trigonometric relation:
Sin(W) = (opposite cathetus)/hypotenuse
We can see that:
Opposite cathetus =15
hypotenuse = 39
Replacing these we will get:
Sin(W) = 15/39
Using the inverse sine function we will get:
W = Asin(15/39) = 22.62°
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if these pigs produce a total of three piglets, what is the probability that all will be pink? express your answer using three significant figures.
If these pigs produce a total of three piglets, then the probability that all will be pink is 0.016
The heterozygous black pig can be represented as "Bb" , where B is the dominant for black skin color and b is the recessive for pink skin color.
When two heterozygous black pigs are crossed, each pig can contribute either B or b to each offspring, giving us four possible combinations for each offspring: BB (black) , Bb (black) , bB (black) , bb (Pink) .
For all piglets to be Pink , we need all pink piglets to be "bb" .
Probability of getting a black pigs = 3/4 and that of pink pigs = 1/4 ;
To find probability of getting all pink pig ;
it can be produced in only one way : .
(i) Pink, Pink, Pink
So probability to get all pink pig ;
⇒ 1/4 × 1/4 × 1/4
⇒ 1/64
⇒ 0.015625 ≈ 0.016
Therefore , the probability that all will be pink 0.016 .
The given question is incomplete , the complete question is
Black skin color is dominant to pink skin color in pigs. Two heterozygous black pigs are crossed.
If these pigs produce a total of three piglets, what is the probability that all will be pink? express your answer using three significant figures.
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f(x)=5x-7. Find f^-1(-2)
Answer:
The answer to the question is 1.75
Angela ran a total of 104.3 minutes in 7 days. If she ran for the same amount of time each day, how many minutes did she run per day?
Answer:
14.9 minutes per day
Step-by-step explanation:
We know
Angela ran 104.3 minutes in 7 days
How many minutes did she run per day?
104.3 divided by 7 = 14.9 minutes per day
So, she ran 14.9 minutes per day.
Can someone please please help mke i was suppose to finnish this at least 4 weeks ago please can someone answer this question for at leat 150 or 200 points.
The number of mulch sold is 108 pounds, and the number of gravel sold is 72 pounds.
What is the number of each item sold?The number of each item sold is calculated as follows;
The number of gravel found in mulch sold is calculated as;
( 2 ¹/₄ ) / ( 1 ¹/₂ ) = ( 2.25 ) / ( 1.5 ) = 1.5
mulch = 1.5 gravel
let the number of gravel = x
1.5x + x = 180
2.5x = 180
x = 180 / 2.5
x = 72
The number of mulch = 1.5 x 72 = 108
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Question
A researcher collected the number of letters in each of 200 first names. The data are found to be normally distributed with a mean of 5.82 and a standard deviation of 1.43.
What percentage of first names have seven letters or less?
82.5%
99.8%
79.4%
84.1%
The data are found to be normally distributed with a mean of 5.82 and a standard deviation of 1.43. The answer will be the later. 90.62%
How to find the percentage?To find the percentage of first names with 7 letters or less, we need to use the Z-score formula to determine how many standard deviations the value 7 is from the mean.
Z = (7 - 5.82) / 1.43
The Z-score indicates how many standard deviations the value 7 is from the mean. A positive z-score indicates a value above the average, and a negative z-score indicates a value below the average.
A Z-score table or calculator can then be used with the standard normal distribution function to find the cumulative probability to which the Z-score compare. This cumulative probability is the percentage of data values that are 7 or less. In this case, Z = 1.36 and the cumulative probability is approximately 0.9062. This means that about 90.62% of given names are seven letters or less of him. So the answer will be the later. 90.62%
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