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------------------------------------------------ Each stage setup uses [tex]\frac{3}{4}[/tex] of a yard of speaker cable. If there are 20 stages, how many yards of speaker cable are used in total?

A. 15 yards
B. 20 yards
C. 22 yards
D. 25 yards

Calculate:
[tex]\frac{3}{4} \times 20 = \frac{60}{4} = 15[/tex]

The correct answer is A. 15 yards.

To find out how many yards of speaker cable are used in total, follow these steps:

1. Identify the amount of cable used per stage setup:
Each stage setup uses [tex]\(\frac{3}{4}\)[/tex] of a yard of speaker cable.

2. Determine the number of stages:
There are 20 stages.

3. Calculate the total cable used:
To find the total amount of cable used, multiply the amount of cable used per stage by the number of stages:
[tex]\[
\frac{3}{4} \times 20 = \frac{60}{4} = 15
\][/tex]

Therefore, the total yards of speaker cable used is 15 yards.

The correct answer is A. 15 yards.