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defon
3 years ago
11

y and x have a proportional relationship, and y = 25 when x = 60. What is the value of x when y = 30? 25, 36, 50, 72

Mathematics
2 answers:
Shalnov [3]3 years ago
4 0
Find the proportional relationship in a unit rate.

x:y

Put in x and y.

60:25

Divide both sides by 5.

12:5

So, every 5 units of y, there are 12 units of x.

Put the new y into proportion.

x:30

There are 5 extra units of y.

All you need to do is add 12 to the previous x.

60+12= 72

x=72

I hope this helps!
~kaikers


Nostrana [21]3 years ago
4 0

Find the proportional relationship in a unit rate.

x:y

Put in x and y.

60:25

Divide both sides by 5.

12:5

So, every 5 units of y, there are 12 units of x.

Put the new y into proportion.

x:30

There are 5 extra units of y.

All you need to do is add 12 to the previous x.

60+12= 72

x=72

I hope this helps!

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