# On a cold day, the temperature in a certain city changed –18.5°F over 7.4 hours.What was the average change in temperature per

On a cold day, the temperature in a certain city changed –18.5°F over 7.4 hours. What was the average change in temperature per hour?

## This Post Has 4 Comments

1. Expert says:

29.5977692753

step-by-step explanation:

2. Expert says:

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

$Ijust need an explanation on how to solve these questions. it's about logs.sorry about the bad quali$