Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 5 - Ratio and Proportion - 5.3 Proportions - 5.3 Exercises - Page 350: 2

Answer

$\frac{28 people}{7 cars}=\frac{16 people}{4 cars}$

Work Step by Step

We are given that 28 people is to 7 cars as 16 people is to 4 cars. In order to write this as a proportion, we can write both relations as fractions. 28 people is to 7 cars can be written as $\frac{28 people}{7 cars}$ 16 people is to 4 cars can be written as $\frac{16 people}{4 cars}$ Next, we can set both fractions equal to each other, which gives us a proportional relationship. $\frac{28 people}{7 cars}=\frac{16 people}{4 cars}$ Since the units in the numerators and denominators are different, we do not simplify any further.
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