tcoyle547 tcoyle547
  • 17-07-2019
  • Mathematics
contestada

the proportion 15 over 3 equals y over 7 , which number is equal to y in the proportion?



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musiclover10045
musiclover10045 musiclover10045
  • 17-07-2019

The equation is:

15/3 = y/7

To solve for y, first cross multiply:

15* 7 = 3 *y

Simplify:

105 = 3y

Divide both sides by 3:

y = 105/3

y = 35

Answer Link
carlosego
carlosego carlosego
  • 17-07-2019

For this case we have the following proportion:

[tex]\frac {15} {3} = \frac {y} {7}[/tex]

We must find the value of "y".

We look for the value of "y" of the expression multiplying by 7 on both sides of the expression:

[tex]\frac {15} {3} * 7 = y\\y = 35[/tex]

Finally, we have the value of "y" in the expression is 35

Answer:

[tex]y = 35[/tex]

Answer Link

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