Question

Starting at 1:00 p.m., the temperature changes -4 degrees Fahrenheit per hour. Write an equation to find how many hours it will take to reach -1 *F.

Answer 1

35 x (-4x) = -1 (9 hours)

Explanation:

If your original temperature is 35, you can place that as your first term. Knowing that the temperature changes by -4 degrees per hour, we can make "x" = the number of hours until we get to -1° F.

35 x (-4x) = -1

-4x = -36

x = 9

Answer 2

35 x (-4x) = -1 (9 hours)

Explanation:

If your original temperature is 35, you can place that as your first term. Knowing that the temperature changes by -4 degrees per hour, we can make "x" = the number of hours until we get to -1° F.

35 x (-4x) = -1

-4x = -36

x = 9