Question

if Y is directly proportional to X and Y is equal to 5 when x is equal to 2 find the value of Y when x is equal to 7​

Answer 1

Answer:

Y=17.5

Step-by-step explanation:

Given;

Y=5 When X=2

Now;Y=? when X=7

By cross multiplying both sides,we get;

Y×2=5×7

2Y=35

Therefore;Y=17.5

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