Question

On Friday, the temperature changes -30 each hour. If the temperature changed for 7 hours, what is the total temperature change?

Please hurry and answer!

Answer 1

A -120 difference will be seen in the temperature within a 7 hour period

Equation

-30 x 7

Multiplying two of different signs ( - + , + - ) will always be negative.

Multiplying two of the same sign ( - - , + + ) will always be positive.