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Chapter 2: Q3B. (page 113)

Solve each proportion. If necessary, round to nearest hundredth.

x+45=38

Short Answer

Expert verified

The value rounded off to nearest hundredth is x≈−2.13.

Step by step solution

01

Step-1. Define equivalent ratios.

Equivalent ratios are two ratios which have same relationship between the numbers.

02

Step-2. Find the cross products.

The given ratios can be simplified by doing cross product:

x+45=388x+4=35

03

Step-3. Simplify for r.

To further simplify, apply distributive property to the right-hand side.

x+45=388x+8×4=158x+32=158x−32−32=15−328x=−178x8=−178x=−2.125x≈−2.13

Therefore, the value of x≈−2.13.

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