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Glencoe Math: Course 3, Volume 2

GM

Glencoe Math: Course 3, Volume 2 View details

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Exercise 6 Page 504

Solve for the variable by using the Cross Products Property.

49

Practice makes perfect

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

3/7 = 21/p

Cross multiply

3p = 7(21)

.LHS /3.=.RHS /3.

3p/3 = 7(21)/3

CancelCommonFac

Cancel out common factors

3p/3 = 7(21)/3

Simplify quotient

p = 7(21)/3

Multiply

p = 147/3

Calculate quotient

p = 49

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