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Glencoe Math: Course 3, Volume 2

GM

Glencoe Math: Course 3, Volume 2 View details

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Exercise 2 Page 504

Solve for the variable by using the Cross Products Property.

31.5

Practice makes perfect

To solve the proportion, we will use the Cross Products Property.

4/9 = 14/y

Cross multiply

4y = 14(9)

.LHS /4.=.RHS /4.

4y/4 = 14(9)/4

SplitIntoFactors

Split into factors

4y/4 = 2 * 7(9)/2 * 2

CancelCommonFac

Cancel out common factors

4y/4 = 2* 7(9)/2 * 2

Simplify quotient

y = 7(9)/2

Multiply

y = 63/2

Calculate quotient

y = 31.5

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