3 years ago

Write a proportion that could be used to solve for each variable. Then solve. 12 balls in 2 boxes 78 balls in x boxes

Mathematics

1 answer:

stira [4]3 years ago

8 0

If 12 balls fit in 2 boxes, 6 balls fit in 1 box. 78 / 6 = 13. 78 balls fit in 13 boxes. x = 13.

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Substitution. (6 points) 3x + 2y = 11 y = 5x - 1 {show work}

nexus9112 [7]

3x+2y=11
y=5x-1

Substitute the y in the first equation:
3x+2(5x-1)=11
y=5x-1

3x+10x-2=11
y=5x-1

13x=13
y=5x-1

Now substitute the x to find the y:
x=1
y=5-1=4

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3 years ago

Please please help me please

nydimaria [60]

The area of a circle is

$A=\pi r^2$

The radius is half the diameter, so we have

$A=\pi \left(\dfrac{11}{2}\right)^2$

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What is the quotient when the sum of 9 and 3 is divided by the difference of 9 and 3

kobusy [5.1K]

sum of 9 and 3 = 12
difference of 9 and 3 = 6

the quotient when the sum of 9 and 3 is divided by the difference of 9 and 3:

12/6 = 2

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4 years ago

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If the line passes through the origin, it is a proportional relationship. is this true or false?

Art [367]

Answer:

True

Step-by-step explanation:

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