Question

A hot tub has 58 inches of water (w) when it is full. The tub

drains at a rate of 7 inches per minute (m): w = 58 – 7m
After you open the drain, how many minutes will it take for the
hot tub to have 23 inches of water remaining?

Answer 1

It will take 5 minutes for the hot tub to have 23 inches of water remaining.

Step-by-step explanation:

To find the number of minutes it will take for the hot tub to have 23 inches of water remaining, we can set up the equation w = 58 - 7m, where w represents the amount of water in inches and m represents the number of minutes. We want to find the value of m when w = 23.

So, we substitute w = 23 into the equation and solve for m: 23 = 58 - 7m.

Subtracting 58 from both sides of the equation gives us: -35 = -7m.

Dividing both sides of the equation by -7 gives us the value of m: m = 5.

Therefore, it will take 5 minutes for the hot tub to have 23 inches of water remaining.