Question

Asked Nov 8, 2019

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If y is directly proportional to x, and y=42 when x=7, find the constant of proportionality and write a formula for y in terms of x.

y=

Use the formula to find x when y is 24

x=

Step 1

Given that ** y** is directly proportional to

So we Can write this in other form as:

Step 2

So, the constant is **6** and the formula for ** y** in term of

* *

Step 3

Use the formula to find ** x** when

** **

Consider ** y = 24 **then we have:

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