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Big Ideas Math Geometry, 2014

BI

Big Ideas Math Geometry, 2014 View details

Maintaining Mathematical Proficiency

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Exercise 8 Page 461

Solve for the variable by using the Cross Products Property.

x=7.5

Practice makes perfect

To solve the proportion, we will start by using the Cross Products Property.

x/3=5/2

Cross multiply

x* 2=3*5

Multiply

2x=15

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

2x=15

.LHS /2.=.RHS /2.

x=15/2

Calculate quotient

x=7.5

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Exercises p.461