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Pearson Geometry Common Core, 2011

PG

Pearson Geometry Common Core, 2011 View details

2. Special Right Triangles

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Exercise 42 Page 505

You can solve for the variable by using the Cross Products Property.

15/2

Practice makes perfect

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

8/15=4/x

Cross multiply

8 * x=15* 4

Multiply

8x=60

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

8x=60

.LHS /8.=.RHS /8.

x=60/8

a/b=.a /4./.b /4.

x=15/2

Subchapter links

Lesson Check p.503

Practice and Problem-Solving Exercises p.503-505

Standardized Test Prep p.505

Mixed Review p.505