Question

Help please on this problem

Answer 1

7.5 hours

Explanation:

We can model an equation for this problem.

We can write:

`F=mt`

Where

F is the final temperature (15 degrees we need)

m is the rate of temperature change (2 degrees per hour)

and

t is the time, in hours, it will take (we need to find this)

It is given,

F = 15

m = 2

So, t would be:

F = mt

15 = 2t

t = 15/2 = 7.5

So it will take 7.5 hours