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Exercises Numbers, fractions and percents

Example 5.44 from Prealgebra, 5.4 Solve Equations with Decimals

Solve Equations with Decimals: example 5.44

Solve: $\frac{p}{- 1.8} = −6.5 .$

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution
We will use the Multiplication Property of Equality.

Here, p is divided by −1.8. We must multiply by −1.8 to isolate p

Multiply.

Check:

A solution to $\frac{p}{−1.8} = −6.5$ is $p = 11.7 .$

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Solve: $\frac{c}{−2.6} = −4.5 .$

How did it go?

PreviousSolve Equations with Decimals: example 5.43 Next Solve Equations with Decimals: example 5.45

From Prealgebra (1st edition) by OpenStax (Rice University), section 5.4, licensed under CC BY 4.0. Original at openstax.org. We split the solution into steps; the words, numbers and figures are the book's. OpenStax doesn't endorse this site.