The temperature in a town increased 16°F in 3 hours. The temperature decreased 34°F in the next 9 hours. Write the total change in temperature as a rate in the form of a quotient of integers. Which of the following expressions shows the rate of the total change in temperature?
A.
50°F
12 hours
——————
B.
−18°F
12 hours
—————
C.
50°F
−12 hours
—————-
D.
18°F
12 hours

it is B

Step-by-step explanation:

The total amount of hours the weather changed was 12 hours.

The difference between 16 and 34 is -18

16 - 34 + - 18

Question:

Which is the value of the expression

A. 1

B. 2

C. 8

D. 10

B. 2

Step-by-step explanation:

Given

Required

Evaluate

Split Fraction

From Laws of Indices

Applying this law to the above expression, we have

Also, from Laws of Indices

Applying this law to the above expression, we have

Multiply 10 by 1

Hence,