Alright, If x+y=7 then y=7-x. If we plug that in then 3x+7-x=45 leads that 2x+7=45 so 2x=38, therefore, x=19 now if x+y=7 and x=29 we know that y=-22. Hope this helped! Try finding the answer now!
plz help me and plz show work 1.
Help I don't understand this
whats the answer to 29-(2c+3)=2(c+3)+c
Answer:
29-(2c+3)=2(c+3)+c=
We move all terms to the left:
29-(2c+3)-(2(c+3)+c)=0
We get rid of parentheses
-2c-(2(c+3)+c)-3+29=0
Step-by-step explanation:
Answer:
Solution for 29-(2c+3)=2(c+3)+c equation:
Simplifying
29 + -1(2c + 3) = 2(c + 3) + c
Reorder the terms:
29 + -1(3 + 2c) = 2(c + 3) + c
29 + (3 * -1 + 2c * -1) = 2(c + 3) + c
29 + (-3 + -2c) = 2(c + 3) + c
Combine like terms: 29 + -3 = 26
26 + -2c = 2(c + 3) + c
Reorder the terms:
26 + -2c = 2(3 + c) + c
26 + -2c = (3 * 2 + c * 2) + c
26 + -2c = (6 + 2c) + c
Combine like terms: 2c + c = 3c
26 + -2c = 6 + 3c
Solving
26 + -2c = 6 + 3c
Solving for variable 'c'.
Move all terms containing c to the left, all other terms to the right.
Add '-3c' to each side of the equation.
26 + -2c + -3c = 6 + 3c + -3c
Combine like terms: -2c + -3c = -5c
26 + -5c = 6 + 3c + -3c
Combine like terms: 3c + -3c = 0
26 + -5c = 6 + 0
26 + -5c = 6
Add '-26' to each side of the equation.
26 + -26 + -5c = 6 + -26
Combine like terms: 26 + -26 = 0
0 + -5c = 6 + -26
-5c = 6 + -26
Combine like terms: 6 + -26 = -20
-5c = -20
Divide each side by '-5'.
c = 4
Simplifying
c = 4
Help me Please on these Writing Proportions.
Answer:
C; It shows the cost of the other situation, and if you do cross/multiply/divide, you will get the overall cost of 13 glue sticks using the proportion.
Circles AAA and BBB coincide.
Alex concluded:
"Circles AAA and BBB have no sides or angles with the same measurement, so the circles are not congruent."
What error did Alex make in their conclusion?
Choose 1 answer:
Choose
Answer:
boy oh boy ummmmmm they are congrugent
Step-by-step explanation:
answer
the circles are mapped onto each other, so they are congruent
Step-by-step explanation:
this is the answer because i just had this question on my khan academy test this is correct :0
HELP PLZ
A biker’s speed is 1.5 times faster than a walker’s speed. They start moving simultaneously in the same direction from the same point and, after 1.5 hours, the distance between them is 12.5 miles. What are their speeds?
Answer: Speed of walker and biker will be 16.67 miles per hour and 25 miles per hour respectively.
Step-by-Step explanation:
Leave the speed of a walker alone x
Let the speed of a biker be 1.5x
They are moving a similar way,
thus, their Relative speed will be
1.5x - x =0.5x
Time taken = 1.5 hours
Separation between them = 12.5 miles
As we probably am aware the equation for "Distance":
*Picture attached*
Consequently, the Speed of the walker be 16.67 miles every hour
Speed of biker be
1.5 times 16.67=25 miles per houe
The speed of the walker and the biker will be 16.67 miles per hour and 25 miles per hour.
What is speed?Speed is the distance that a particle or body travels in one hour. It has a scalar value. It is the time-to-distance ratio.
We know that the speed formula
Speed = Distance/Time
A biker’s speed is 1.5 times faster than a walker’s speed.
Let y be the speed of the biker and x be the speed of the walker. Then the equation is given as,
y = 1.5x
They begin going simultaneously from the same location in the same direction, and after 1.5 hours, there are 12.5 miles separating them.
y - x = 12.5 / 1.5
1.5x - x = 25/3
0.5x = 25/3
x = 16.67 miles per hour
Then the speed of the biker will be given as,
y = 1.5 (16.67)
y = 25 miles per hour
The speed of the walker and the biker will be 16.67 miles per hour and 25 miles per hour.
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Can someone help with number 6?
Answer:
A=16
B= About 170
C=25 apples can be added to each bushels
Step-by-step explanation:
Each person who enters a store receives a $5 off coupon. In the equation y = 5x, y is the total value of the coupons given out by the store, and x is the number of people receiving the coupons.
Wen says the function is continuous, because the number of people is unlimited. Is Wen right or wrong? Explain.
Answer:
Wen is correct
Step-by-step explanation:
Wen is correct because normally you would divide 5x by5 and you can still do that but then you half to divide y by 9 and since you dont know the answer it is continues.
Answer:
Sample response
Step-by-step explanation:
The function is not continuous because there can only be a whole number of people. Thus the points would not be connected, and the function is discrete.
Kayla walks into her favorite store at the mall and sees a sign: All jeans and skirts 25% off! How much will she spend if she buys one pair of $49 jeans and one $19 skirt?
Answer: £51
Step-by-step explanation:
25% off 49 = 36.75
25% off 19 = 14.25
36.75 + 14.25 = 51
Fifth Question!
(if the answer is not applicable to the question it will be reported and removed)
Answer:
0%
Step-by-step explanation:
At midnight, the temperature was -8F. At noon, the temperature was 23F. Which expression represents the increase in temperature? *
Answer:
-8 + 31 = 23
Step-by-step explanation:
23 - 31 = -8
−10=−b4 (B IS OVER 4)
b=
Answer:
40
Step-by-step explanation:
Answer:
-40
Step-by-step explanation:
-10=-b/4
-10*4=-40
b=-40
a number that is less than -80
Answer: x< -80
Step-by-step explanation:
PLEASE HELP WILL MARK BRALIEST :)))!!!!!
The six cars of a Ferris wheel are located at the vertices of a regular hexagon.
Which rotation about point P maps car A to car C?
60o
90o
120o
135o
Answer:. 120°
Step-by-step explanation:
A complete rotation is 360°
From the position of A to the position of C is 1/3 of that.
A pom-pom manufacturer makes each of its pom-poms with 35% white strands (w), 25% blue strands (b), and 40% red strands (r). If each pom-pom has a total of 80 strands, how many of strands of each color are needed to make a pair of pom-poms? In this activity, you’ll work through this pom-pom problem step by step.
Part A
Write a proportion for the number of strands in each color to find how many strands are needed to make one pom-pom.
white strands: w/80=?/?blue strands:b/80=?/?red strands: r/80=?/?
Answer:
32 red
28 white
20 blue
Step-by-step explanation:
.40 x 80 = 32 red
.35 x 80 = 28 white
.25 x 80 = 20 blue
The totals have to equal the total number of strands.
Answer:
white: w/80 = 35/100
blue: b/80 = 25/100
red: r/80 = 40/100
Step-by-step explanation:
Your test scores in one class are 80 and 88. What possible scores can you earn on your next test to have a test average between 84 and 89, inclusive?
Answer:
The average of your two scores to date is 84. You need the average of these two tests plus the next test to be between 84 and 89.
So, you need to solve for x, where 2/384 + 1/3x = 84. This will give you the lower end of your next test.
And you need to solve for y, where 2/384 + 1/3y= 89. This will give you the higher end of your next test.
The reason for the 2/3 in front of the 84 is because there are two tests there, and the reason for 1/3 in front of the unknowns is because that is just one test. Averages need to be weighted by number of observations.
I won't go through the algebra here, but the answers will be 84 and 99.
Step-by-step explanation:
Answer:
84 to 99
Step-by-step explanation:
If the goal for your average is 84, then your test scores total ...
(80-84) +(88-84) = -4 +4 = 0
relative to your desired average. This means your minimum score on the next test will need to be 84 -0 = 84.
__
If the goal for your average is 89, then your test scores total ...
(80-89) +(88-89) = -9 -1 = -10
relative to your desired average. This means your maximum score on the next test will need to be 89 -(-10) = 99.
To ensure a test average between 84 and 89, your next test score must be between 84 and 99.
CAN SOMEONE PWEASE HALP MEH!?! (7th grade math) SHOW WORK TO PLS
Answer:
75 miles
Step-by-step explanation:
put it in proportion
8/120=5/x
cross multiply
120 times 5 =600
8 times x = 8x
8x=600
divide 8 by both sides
cross out 8/8 and x = 75
The figure shows three quadrilaterals on a coordinate grid:
Which of the following statements is true about the three quadrilaterals?
A.) A and B are similar but not congruent.
B.) A and C are similar but not congruent.
C.) A and B are similar and also congruent.
D.) B and C are similar and also congruent.
Answer:
D.) B and C are similar and also congruent.
Step-by-step explanation:
They have the same lengths, meaning they are congruent as well.
if the trapezoid below is enlarged using a scale factor of 6, what will be the perimeter of the new trapezoid?
BRAINLIEST AND 50 POINTS PLZ HELP ASAP
A number cube is rolled several times. The results are shown in the table below. What is the ratio of rolling a 2 to rolling a 5?
Answer:
well if we are looking at ratios then it would be 2:5 and the smallest number always comes first sometimes but in this problem 2 will be infront of the 5
Step-by-step explanation:
PLZ BRAINLIEST
At a train station, Track A is parallel to Track C. Track B intersects Track A and Track C. Track A and
Track B intersect at an angle of 150o
as shown. What is the measure of the angle, x , formed by the intersection of Track B and Track C?
A 30o
B 50o
C 150o
D 180o
Answer:
C
Step-by-step explanation:
An elevator can hold less than 2700 pounds of extra weight. If an average person weighs 150 pounds, what is the maximum number of people (p) that can be on the elevator at one time?
(A) p ≤ 18
(B) p > 18
(C) p < 18
(D) p ≥ 18
Answer:
(A) p ≤ 18
Step-by-step explanation:
p = people obviously
If you divide 2700 and 150 you get 18
2700/150 = 18
So now this is where you have to think a little, if 18 people get on an elevator then they are at maximum weight capacity. But if 17 people or less get on then they don't exceed the weight limit for therefore p can be less than or equal to 18, which is why this sign (≤) is there, the little line under the less then sign means it can be less than or equal to.
Which graph represents y= 2/3x+3? Please explain
Answer:
The graph in the image is the correct one
Step-by-step explanation:
The slope intercept equation is y=mx+b, "m" is the slope and the "b" is the y-intercept
the y-intercept is the point where the lines crosses the y-axis and on the graph that point is 3, so our "b" would be 3, y=mx+3
Now, an easy way to get our slope is rise over run (rise/run) Start from any point where the line touches a point and count striaght up until you find another point and go to the left/right depending on where the point is. if we do that, we will get 2/3 as our slope/"m", y=2/3x+3
We can also find the slope using the slope formula, [tex]m=\frac{y2-y1}{x2-x1}[/tex]
just find 2 coordinates on the graph and plug them in. If you have a graph, then I would recommend rise over run (rise/run)
feel free to ask any questions or comments
The coordinates points to plot on graph are (0, 3), (3, 5), (6, 7) and (9, 9).
What is the graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter.
The given equation is y= 2/3x+3.
Graph the line using the slope and y-intercept, or two points.
Slope: 2/3
y-intercept: (0, 3)
Put x=0, 1, 2, 3, 4,....
When x=0
y= 2/3x+3=3
When x=3
y=5
When x=6
y=7
When x=9
y=9
So, the coordinates are (0, 3), (3, 5), (6, 7) and (9, 9)
Therefore, option C is the correct answer.
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Someone help me this is part of my grade
Answer:
This isnt math
Step-by-step explanation:
Answer:
not math
Step-by-step explanation:
PLZ HELP ME WITH THIS LCM WORK ) I WILL MARK IF I CAN
Answer:
18th customer
Step-by-step explanation:
Every 6th customer receives a rose
Every 9th customer receives a lily
6 & 9 LCM
6=3*2
9=3*3
3*3*2=18
Answer:
18th customer
Step-by-step explanation:
6: 6, 12, 18
9: 9, 18
LCM: 18
PLEASEEEEEEE HELP DON'T SCROLL. ONLINE SCHOOL IS TAKING A TOLL ON ME. PLEASE HWLP ACCURATELY AND FAST THIS IS ALSO JUST PART A
For two figures to be considered congruent, their corresponding sides and angles must all be the same. Congruence can occur in any geometric figures, from simple line segments to complicated shapes with many sides and angles. Here’s another way to think about congruence: if you cut two figures out of paper, you could place one cutout on top of the other cutout and it would disappear. Consider that geometric figures are made up of an infinite number of points. When superimposed on top of each other, all of the points in one figure would match up with all of the points in the other figure.
According to the passage, which of the following is not true?
A
Paper cutouts can be used to determine congruence.
B
Congruent figures have exactly the same size and shape.
C
Congruence only happens in three- or four-sided figures.
D
Two octagons can be congruent if their corresponding sides and angles match up.
Answer:
Anwer is C
Step by step explanation:
1. If you measure one hundred centimeters is the distance more or less than one kilometer?
a) 100 centimeters is equl to 1 kilometer
b)100 centimeters is more than 1 kilometer
c)100 centimeters is less than 1 kilometer
Answer:
b is wrong it is c
hope it helped
Step-by-step explanation:
The distance is less than one kilometer, because one kilometer is equal to 100000 centimeters.
What is kilometer?A kilometer is a unit of the metric system that is used to measure length or distance. It is mainly used to express a distance as a unit of the International System of Units (SI units).
1 kilometer = 1000 meters.
1 meter = 100 centimeters
1 kilometer = 100000 centimeters
Hence, the distance is less than one kilometer.
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Anjali is putting a border around a right triangle and needs to figure out the triangle's height. If the triangle has a base length of 18 in. and a total area of 36 in.2, what is the height?
Answer:
4
Step-by-step explanation:
the formula for area of a triange is 1/2bh, so fill in the variables and set that equal to 36
Height of the right angled triangle is equals to 4in.
What is right angled triangle?" A right angled triangle is a two dimensional closed figure with three vertices and three angles, one of the angle should be of measure 90 degrees."
Formula used
Area of right angled triangle = ( 1 / 2) × base × height
According to the question,
Base of the right angled triangle = 18in.
Area of the right angled triangle = 36 in²
Let 'h' represents the height of the triangle
Substitute the value in the formula we have,
36 = ( 1 / 2) × 18 × h
⇒36 = 9h
⇒ h = 4in.
Hence, height of the right angled triangle is equals to 4in.
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