Chapter 6.1, Problem 29PPS

To determine

To compare the given ratios.

Answer to Problem 29PPS

$27 for 9 key chains = $45 for 15 key chains.

Explanation of Solution

Given:

$27 for 9 key chains, $45 for 15 key chains.

Calculation:

The ratio representing $27 for 9 key chains is,

  $\frac{27}{9}=\frac{9\times 3}{9}=\frac{3}{1}=3:1$

The ratio representing $45 for 15 key chains is,

  $\frac{45}{15}=\frac{15\times 3}{15}=\frac{3}{1}=3:1$

Hence both the ratios are equal, that is

$27 for 9 key chains = $45 for 15 key chains.