Winter clothing drive

Grace's class collected 10 pounds of clothing for the winter clothing drive. Lucia's class collected 1 1/2 times as much clothing as Grace's class. How many pounds of clothing did Lucia's class collect?

Write your answer as a fraction or as a whole or mixed number.

Correct answer:

L =  15 lb

Step-by-step explanation:

$$\begin{gathered} G=10\text{lb} \\ r=1\frac{1}{2}=1+\frac{1}{2}=\frac{1\cdot 2+1}{2}=\frac{2+1}{2}=\frac{3}{2}=1.5 \\ L=r\cdot G=\frac{3}{2}\cdot 10=\frac{3\cdot 10}{2}=\frac{30}{2}=15\text{lb} \end{gathered}$$

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