Question

Kwasi bought `15` postage stamps for `\$8.25`. All stamps cost the same amount. How many stamps can Kwasi purchase with $22

Answer 1

The number of stamps and the cost are illustrations of unit rates

40 stamps would cost $22

The cost of 15 postage stamps is $8.25

Start by calculating the unit rate of the stamps.

$Unit = \frac{8.25}{15}$

$Unit = 0.55$

So, the number of stamps for $22 is calculated by dividing $22 by the unit rate.

So, we have:

$Number=\frac{22}{0.55}$

$Number=40$

Hence, 40 stamps would cost $22

Read more about unit rates at:

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