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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

1. Ratios and Proportions

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Exercise 8 Page 546

You can solve the proportion by using the Cross Products Property .

39/8

Practice makes perfect

To solve the proportion, we will start by using the Cross Products Property. Remember that we will need to treat x-3 as a single quantity in the cross multiplication process.

x-3/3=5/8

Cross multiply

(x-3)8=3(5)

Multiply

(x-3)8=15

From here, we will continue solving for x by using the Distributive Property and the Properties of Equality.

(x-3)8=15

Distribute 8

8x-24=15

LHS+24=RHS+24

8x=39

.LHS /8.=.RHS /8.

x=39/8

Therefore, the solution for the given equation is x= 398.

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Exercises p.546-549