Question

A pot of water is being heated up. The temperature of the water can be modeled by this equation with y representing the temperature, in degrees Fahrenheit, and x representing the time, in minutes, that the water has been on the stove. y = 9.5x + 62.1 After how many minutes will the temperature of the water be 138.1°F? Enter your answer in the box.

Answer 1

Answer: After 8 minutes the temperature of water will be 138.1°

Explanation:

Answer 2

Given function:
y=9.5x+62.1
We have to find the number of minutes x, when y=138.1°F
Put value of y in function.
138.1=9.5x+62.1
Subtract 62.1 from both sides.
76=9.5x
Divide both sides by 9.5.
8=x
or
x=8 minutes

Answer: After 8 minutes the temperature of water will be 138.1°