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## If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y whenx is 112 o y- (11) o

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## Answers ( )

The expression that can be used to find the value of y when x is 112 is

y= 3.6*112Step-by-step explanation:We are given that y varies directly with x, and y=18 when x = 5.

We need to find the expression used to find the value of y when x = 112

When y varies with x, it means:

y ∝ x

y= k x

where k is constant of proportionality.

if y= 18 and x = 5, then finding k:

y = k x

18= k*5

k= 18/5

k= 3.6

So, value of k is: 3.6

Finding expression for y when x = 112

y= k x

k= 3.6 and y = 112

y= 3.6*112So,the expression that can be used to find the value of y when x is 112 isy= 3.6*112Keywords:Direct VariationLearn more about Direct Variation at:

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