Question

A volunteer has 12 pounds of birdseed to put in the bird feeders in all of the city parks. There are 13/4 cups of birdseed in a pound, and each bird feeder holds about 3/4 cup of birdseed. How many bird feeders can the volunteer fill completely.

Answer 1

`\large \boxed{28}`

Explanation:

1. Calculate the number of cups

`\text{Cups} = \text{12 lb}*\frac{1(3)/(4) \text{ cups}}{\text{1 lb}} =12*\frac{\text{7 cups}}{4} = 3*7\text{ cups}= \text{21 cups}`

2. Calculate the number of bird feeders

`\text{ Feeders}= \text{21 cups} * \frac{\text{1 feeder}}{(3)/(4)\text{ cup}}=\text{21 cups} * \frac{\text{4 feeders}}{\text{3 cups}} = 7 * \text{ 4 feeders}\\\\= \textbf{28 feeders}\\\text{The volunteer can fill $\large \boxed{\textbf{28 feeders}}$}`