Algebra 1

Published by Prentice Hall

Chapter 1 - Foundations for Algebra - Cumulative Test Prep - Multiple Choice: 17

Answer

B) $1\frac{5}{12}$

Work Step by Step

One batch of muffins is 12 muffins and requires $1\frac{1}{4}$ cups of milk. Use unit fractions to find how much milk is needed. How many batches of muffins are you making? $36\ muffins \times\frac{1\ batch}{12\ muffins} =3$ batches How much milk is required for 3 batches? $3\ batches\times\frac{1\frac{1}{4}\ cups}{1\ batch}=3\frac{3}{4}$ cups of milk How much more milk is needed? Subtract the amount you have from the amount needed to find out how much more is needed. $3\frac{3}{4}-2\frac{1}{3}\longrightarrow$ Convert to like fractions. $3\frac{3\times3}{4\times3}-2\frac{1\times4}{3\times4}\longrightarrow$ simplify $3\frac{9}{12}-2\frac{4}{12}\longrightarrow$ subtract $1\frac{5}{12}$

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