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McGraw Hill Integrated II, 2012

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McGraw Hill Integrated II, 2012 View details

5. Angles of Elevation and Depression

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Exercise 47 Page 669

Solve for the variable by using the Cross Products Property.

2.1

Practice makes perfect

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

4x/16=62/118

Cross multiply

4x* 118=16*62

Multiply

472x=992

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

472x=992

.LHS /472.=.RHS /472.

x=992/472

Use a calculator

x=2.10169...

Round to 1 decimal place(s)

x≈ 2.1

Subchapter links

Exercises p.665-669