Question

The high temperatures for the first 5 days in December were as follows: 28 degrees, 3 degrres, -2 degrees, -4 degrres, and 12 degrres. What is the average high temperature of the 5 days? If the next da is 0 degrees, would the average of the six days increase or decrease?

A) 7 degrees
B) 7.4 degrees
C) 7.8 degrees
D) 8 degrees

Answer 1

The average high temperature of the first 5 days in December is 7.4 degrees. If the next day has a temperature of 0 degrees, the new average would decrease.

Step-by-step explanation:

The average high temperature of the first 5 days in December is calculated by summing up the temperatures and dividing by the number of days, which in this case is 5.

(28 + 3 + (-2) + (-4) + 12) / 5 = 37 / 5 = 7.4 degrees

If the next day has a temperature of 0 degrees, the new average can be calculated by adding the temperature and dividing by the new total number of days, which is 6.

(28 + 3 + (-2) + (-4) + 12 + 0) / 6 = 37 / 6 = 6.17 degrees

Therefore, the average of the 6 days would decrease, and the correct answer is B) 7.4 degrees.