Question

It takes 12 hours to clean the windows of a certain office building. During the

first day of cleaning, the workers were able to clean for 9 hours. If the variable
t stands for the amount of time the workers have left to clean the windows,
which of the following units could apply to this variable?
•
A. workers
B. hours
C. windows
D. buildings

Answer 1

Answer: B. hours

Explanation:

Let us closely look at the varible t it gives, the one we are looking at units for. "t stands for the amount of time the workers have left to clean the windows"

"t stands for the amount of time ..."

The only unit they give that represents time is hours, meaning the answer to your question is:

B. hours