Book edition Common Core Edition

Author(s) Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

Pages 183 pages

ISBN 9780547587776

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Short Answer

Pizza You know that 3 pizzas are enough to feed 12 people. Write and solve a proportion to find the number of pizzas that will feed 28 people.

7 pizzas will feed 28 people.

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1. Given

Given that 3 pizzas feed 12 people.

Step 2. To determine

We have to write and solve the proportion and find the number of pizzas that can feed 28 people.

Step 3. Calculation

Given that, 3 pizzas are enough to feed 12 people.

Let, x is the number of pizzas to feed 28 people.

So, the proportion is given by,

$\frac{3}{12} = \frac{x}{28}$

Then we solve the equation:

$\begin{matrix} \frac{3}{12} = \frac{x}{28} \\ \frac{3}{12} \times 28 = \frac{x}{28} \times 28 [divide each side by 28] \\ \frac{84}{12} = x [divide] \\ x = 7 \end{matrix}$

Therefore, 7 pizzas will feed 28 people.

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Pre-algebra

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Short Answer

Pizza You know that 3 pizzas are enough to feed 12 people. Write and solve a proportion to find the number of pizzas that will feed 28 people.

Step by Step Solution

Step 1. Given

Step 2. To determine

Step 3. Calculation

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Pre-algebra

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Short Answer

Pizza You know that 3 pizzas are enough to feed 12 people. Write and solve a proportion to find the number of pizzas that will feed 28 people.

Step by Step Solution

Step 1. Given

Step 2. To determine

Step 3. Calculation

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