An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The change in Shamar's bank account after 7 months is
x - 98.
Where x is the amount in the account initially.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Amount in the account = x
Amount deducted every month = $14
The change in the account after 7 months.
= x - 7 x 14
= x - 98
Thus,
The change in Shamar's bank account after 7 months is
x - 98.
Where x is the amount in the account initially.
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The sets A and I are defined as follows: A = { − 2 , − 1 , 0 , 1 , 7 } I = { − 2 , − 1 , 1 , 2 , 8 } Find the intersection of A and I .
The intersection of A and I, A ∩ I = {-2, -1, 1}
What is intersection and union of sets?The intersection of two sets A and B is the set of all common elements, it is denoted with A ∩ B.
Whereas the union of those two sets is the set of all elements that are either in A or in B, it is denoted by A ∪ B.
The given sets are,
A = {-2, -1, 0, 1, 7}
And I = {-2, -1, 1, 2, 8}
Intersection of A and I,
A ∩ I = {-2, -1, 1}
The intersection of A and I is {-2, -1, 1}.
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please help someone its the last question :((((((((((((((((((
Answer:
x = 11
Step-by-step explanation:
(7x - 4) and 73 are alternate exterior angles and are congruent , then
7x - 4 = 73 ( add 4 to both sides )
7x = 77 ( divide both sides by 7 )
x = 11
Answer:
[tex]x = 11[/tex]
Step-by-step explanation:
two angles are congruent for the parallelism of the two horizontal lines (external alternates). thus
[tex]7x - 4 = 73 \\ 7x = 77 \rightarrow x = 11[/tex]
A speed limit in Europe is 80 km per hour. What is the speed in miles per hour? There are about 1.6 kilometers in 1 mile. (1 point)
Responses
50 miles per hour
50 miles per hour
75 miles per hour
75 miles per hour
128 miles per hour
128 miles per hour
50 miles
ned asap
pls answer rightly not spam
Answer:
50 miles per hour
Step-by-step explanation:
80 km 1 mi
---------- x ------------ = 50 mi/hr
1 hr 1.6 km
In your own words, describe the y-intercept.
Answer:
The y-intercept is the point where the graph ( line or curve ) intercepts the y-axis. The y-intercept is the y value of the point, ( x, y ).
Hope this helps!
Step-by-step explanation:
The graph below shows the relationship between the number of ounces and the number of calories in steak.
Which equation best represents this relationship?
Responses
Answer:
??
Step-by-step explanation:
where are the equations ?
Answer:
Step-by-step explanation:
Last Friday, Kira and Marcy got dinner at Seaside Sushi restaurant. Kira ordered 2 pieces of tuna and 5 pieces of crab. Marcy ordered 3 pieces of tuna and 6 pieces of crab. Did Kira and Marcy order the same ratio of tuna pieces to crab pieces?
Answer:
no
Step-by-step explanation:
because Kira ordered 5 pieces of crab while Marcy has ordered 6 pieces of crab
How to solve 3-2/5x-12/5=10-2x/5
1. Use the picture to answer the following questions.
2. Find the missing value(s) in the ratio table.
The ratio of snakes to frogs is 1 : 2.
The ratio of frogs to animals is 2 : 3.
If 3 more snakes are added, the number of frogs that should be added to keep the ratio constant is 6.
Here are the completed tables:
TVs 2 4 6
Computers 7 14 21
Trumpets 10 5 20 25
Drums 8 4 16 20
Books 0 40 100
Boxes 0 2 5
What are the ratios?Ratio expresses the relationship between two or more numbers. It is the number of times that one value is contained within other value(s).
The ratio of snakes to frogs can be determined by counting the number of snakes and frogs.
Number of snakes = 4
Number of frogs = 8
The ratio of snakes to frogs - 4 : 8 = 1 : 2
The ratio of frogs to animals = number of frogs : number of animals = 8 : 12 = 2 : 3.
Number of snakes if 3 more are added = 4 + 3 = 7
Ratio of snakes to frogs - 1 : 2
Number of frogs that would keep the ratio constant = 7 x 2 = 14
Number of frogs that should be added = 14 - 8 = 6
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Which model represents the sum of 4 + 12?
Answer: 16
Step-by-step explanation:
Imagine you had 4 apples and someone gave you 12 more. You would have 16 apples.
Write an equation in slope-intercept form for the line that passes through (3, 1) and (1,2).
The equation of the line that passes through (3, 1) and (1,2) in slope intercept form is y = - 2 / 2 x + 5 / 2.
How to find equation of a line?The equation of a line can be represented in different form such as slope intercept form, point slope form, standard form and general form.
Therefore, let's write the equation of a line that passes through (3, 1) and (1, 2).
using slope intercept form,
y = mx + b
where
m= slopeb = y-interceptTherefore, let's find slope
m = 2 - 1 / 1 - 3
m = 1 / - 2
m = - 1 / 2
Let's find y-intercept using (1, 2)
2 = - 1 / 2(1) + b
b = 2 + 1 / 2
b = 5 / 2
Therefore, the equation is y = - 2 / 2 x + 5 / 2
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A car dealership increased the price of a certain car by 13%. The original price was $39,400.
Answer:
find the increased dollar amount by finding the percentage amount first:
$ 39,400 * .13
= $ 5,122
then take $ 5,122 and add it to the original price
$ 39,400 + $ 5,122 = $ 44,522 (new price)
Step-by-step explanation:
A house on the market was valued at $355,000 . After several years, the value decreased by 9%. By how much did the house's value decrease in dollars? What is the current value of the house?
Answer: $323,050
Step-by-step explanation:
355,000 over 1 x 9 over 100 = 3195000 over 100 (31950)
355,000- 31,950 = 323,050 which is your answer, hope this helped <3
is a gas station sells 8 bags of chips for $12, what is the unit price
The ratio shows how many times one value is contained in another value.
8 bags of chips = $12
1 bag of chips = $1.5
The unit price of a bag of chips is $1.5
What is a ratio?The ratio shows how many times one value is contained in another value.
Example:
There are 3 apples and 2 oranges in a basket.
The ratio of apples to oranges is 3:2 or 3/2.
There are 4 black and 3 white marbles in a bag.
The ratio of black and white marbles in the bag is 4:3.
We have,
8 bags of chips = $12
Divide both sides by 8.
1 bag of chips = $12/8
1 bag of chips = $3/2
1 bag of chips = $1.5
This means,
1 bag of chips costs $1.5
Thus,
The unit price of a bag of chips is $1.5
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simplify this expression-12÷3×(-8+(-4)²-6)+2
Answer: -6
Step-by-step explanation:
How many reflection symmetry does an eight pointed star have ? How many rotational symmetry does an eight pointed star have ?
An eight pointed star have 8 rotational symmetry and 8 reflection symmetry
What is rotational symmetry?The rotational symmetry of a shape explains why an object's shape remains unchanged when rotated about its own axis.
The eight pointed star while standing on any of the edges will be symmetrical.
What is reflection symmetry?Symmetry with respect to reflections is known as reflection symmetry. Mirror or line symmetry are other names for reflection symmetry.
For a reflection symmetry to be in a figure, the figure must at least have one line dividing it into two parts, one of which is the mirror image of the other,
Each of the peak and crest in the star will make 8 reflection symmetry
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Which choice is equivalent to the fraction below 2/√x - √x+2
The fraction is equivalent to the [tex]\sqrt{x+2}-\sqrt{x}[/tex].
The correct option is (C).
Given,
The fraction is given as:
[tex]\frac{2}{\sqrt{x} -\sqrt{x+2} }[/tex]
To find the above fraction which choice is equivalent to the fraction?
Now, According to the question:
Simplify or expand
[tex]\frac{2}{\sqrt{x} -\sqrt{x+2} }[/tex]
Rationalize the denominator:
[tex]\frac{2(\sqrt{x} -\sqrt{x+2} )}{(\sqrt{x} -\sqrt{x+2})(\sqrt{x} -\sqrt{x+2} ) }[/tex]
Expand the expression:
[tex]\frac{2(\sqrt{x} +\sqrt{x+2} )}{(\sqrt{x})^2-(\sqrt{x+2} )^2 }[/tex]
[tex]\frac{2(\sqrt{x} +\sqrt{x+2} )}{x-(x+2)}[/tex]
[tex]\frac{2(\sqrt{x} +\sqrt{x+2} )}{-2}[/tex]
Determine the sign and cross out the common factor:
[tex]\sqrt{x+2}-\sqrt{x}[/tex]
Hence, The fraction is equivalent to the [tex]\sqrt{x+2}-\sqrt{x}[/tex].
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so many points if dine quickly
Write the prime factorization of 48
The prime factorization of 48 is 2⁴ × 3.
What are prime numbers?Those greater than one are known as prime numbers. They simply have two variables: the number itself and factor 1. This indicates that these numbers cannot be divided without leaving a remainder by any number other than 1 and the number itself.
Given:
The number is 48,
Factorize 48 we get 2 × 2 × 2 × 2 × 3
= 2⁴ × 3
Therefore, the prime factorization of 48 is 2⁴ × 3.
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What is the slope of the line on the graph?
Enter your answer in the box.
Point M is the midpoint of AB. If the coordinates of A are ( -3 , 6 ) and the coordinates of M are ( -5 , 2 ), what are the coordinates of B? (reference sheet on the left side)
The coordinates of B are (-7,-2).
What do you mean by x and y coordinates?
The x and y coordinates are a component of the x-axis and y-axis in a 2D space in the Cartesian coordinate system. The x and y coordinates for a point in space are expressed as an ordered pair (x, y). The position of the point on the x-axis is shown by the first number, while its location on the y-axis is indicated by the second number.
According to the given data in the question,
if M is the location where line segment AB meets its midpoint.
Then, we will using the midpoint formula,
[tex](-5,2)=(\frac{-3+x}{2},\frac{6+y}{2})..............(1)[/tex]
Putting the x-coordinates in (1),
[tex]-5=\frac{-3+x}{2}\\ -10=-3+x\\-10+3=x\\x=-7[/tex]
Similarly, putting the y-coordinates in (1),
[tex]2=\frac{6+y}{2} \\4=6+y\\4-6=y\\y=-2[/tex]
Hence, the coordinates of B are (-7,-2).
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I need answer help please
The value of the function f(a+4) is [tex]\frac{7}{a^{2} +8a+11}[/tex]
What is a function?function, in mathematics, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable called the dependent variable.
if f(x) = [tex]\frac{7}{x^{2} - 5}[/tex], which means this equation is a function of x,
To find another equation whose function is f(a + 4)
We substitute x for a + 4 in the above equation
f(a+4) = [tex]\frac{7}{(a+4) ^{2} - 5 }[/tex]
expanding [tex](a + 4)^{2}[/tex], and simplifying the denominator, we have
[tex]a^{2}[/tex] +8a + 16 - 5 = [tex]a^{2}[/tex] + 8a + 11
so the simplified form of the new function would be [tex]\frac{7}{a^{2} +8a+11}[/tex]
In conclusion, the function f(a +4) = [tex]\frac{7}{a^{2} +8a+11}[/tex]
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solve 4x + 2=(1/8)x-2
Answer:
x = -32/31
Step-by-step explanation:
4x - 1/8 x = -2 -2
(32 - 1)/8 x = -4
31/8 x = -4
x = -4 * 8/31
x = -32/31
write 10 forms for 1 over 8 as you can think of, be creative and use positive and negative powers or other forms of number.
Answer:
No entendí porfavor puedes ponerlo en Español
what is 1311 divided by 20=?
using long division and with a remainder
The value of the solution of division is 115 with the remainder 11.
We have to give that,
1311 divided by 20.
Now, using long division as,
1311 divided by 20.
20 ) 2311 ( 115
- 20
------------
31
- 20
------
111
- 100
--------
11
Hence, the solution of division is, 115 with the remainder 11
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Jeremy received a bill with a balance due of $35.60. After an error was corrected, the new balance was of the original balance due.
What was the new balance due?
For Jeremy the new balance due was $8.9 .
In the question ,
it is given that ,
bill received by Jeremy with balance due = $35.60
also given that after an error occurred ,
the new balance was 1/4 of the original balance due .
So , the new balance due is = (1/4) × (original balance due)
Substituting the value of original balance due ,
we get ,
new balance due = (1/4) × (35.60)
= 35.60/4
On Simplifying further ,
we get ,
= 8.9
Therefore , For Jeremy , the new balance due was $8.9 .
The given question is incomplete , the complete question is
Jeremy received a bill with a balance due of $35.60. After an error was corrected, the new balance was 1/4 of the original balance due. What was the new balance due ?
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Consider the function graphed at right.
The function has a maximum
of 3
The function is increasing on the interval(s):
The function is decreasing on the interval(s):
at x =
-4
4
-32
-5--
3 4 5
1 2 3 4 5
Answer:
heyyyyyyyyyyyyyyyyyyyyyyyy
HELP! Recursive and explicit growth problem
The populations, considering an exponential function, are given as follows:
P(1) = 19.2.P(2) = 23.04.P(12) = 142.66.What is an exponential function?An increasing exponential function is modeled according to the rule presented as follows:
[tex]A(t) = A(0)(1 + r)^t[/tex]
In which the variables of the function are:
A(0) is the initial amount of the function.r is the growth rate of the function, as a decimal.In this problem, the parameters are given as follows:
A(0) = 16, r = 0.2.
Hence the function, written as P(t), is:
[tex]P(t) = 16(1.2)^t[/tex]
The numeric values are found replacing the lone instance of t by the value at which we want to find the numeric value, hence:
P(1) = 16 x (1.2)¹ = 19.2.P(2) = 16 x (1.2)² = 23.04.P(12) = 16 x (1.2)¹² = 142.66.More can be learned about exponential functions at https://brainly.com/question/25537936
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Compute the probability of tossing a six sided die with sides numbered 1 through 6 and getting a 5
The probability of tossing a six-sided die with sides numbered 1 through 6 and getting a 5 is 0.166666 or 1/6.
Here in the question, we see that a six-sided die is tossed. So there will be a total of 6 outcomes.
So the sample space will be {1,2,3,4,5,6}
Of which the possible outcome of getting a 5 is 1
Let A be the event of getting a 5 on tossing a six-sided die
∴ the probability of getting a 5 on tossing a six-sided die is P(A)=1/6
∵ we know that the probability of an event is the possible outcome of the event divided by the total outcomes of that event.
So here the probability of getting a 5 is 0.166666 or 1/6.
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A 2\frac{1}{2}2 2 1 -inch candle burns down in 10 hours. If b represents how much of the candle, in inches, has burned away at any time given in hours, t, write a proportional equation for b in terms of t that matches the context.
The equation that represents the length of the candle over time will be b = -0.25t.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
A 2 ¹/₂ inches candle torches in 10 hours.
Let 'b' be the length of the candle and 't' be the number of hours. Then the equation is given as,
b = -[(2 ¹/₂) / (10)]t
b = -0.25t
The equation that represents the length of the candle over time will be b = -0.25t.
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Fill in the table using this function rule. y=-2x-3
Answer:
6
Step-by-step explanation:
the answer is 6
