Question

In order to evaluate energy demand for heating services, the number of heating degree days are calculated. The number of heating degree days can be calculated by the formula H = 65 - T, where 65 is degrees Fahrenheit, and T is the average of the high and low temperatures for the day. If the high temperature for a day was 51°F and the low temperature for the same day was 45°F, what is the number of heating degree days? A. 14 B. 113 C. 17 D. 48

Answer 1

The number of heating degree days is 17 (option c).

Explanation:

You know that the formula H = 65 - T, where 65 is degrees Fahrenheit, and T is the average of the high and low temperatures for the day.

You know that the high temperature for a day was 51°F and the low temperature for the same day was 45°F.

The mean, also called the average or arithmetic mean, is a measure of central position. In general, the average is calculated by adding all the figures or values ​​presented and dividing them by the total number of values. So, in this case, the average of the high and low temperatures for the day is:

`(51 F + 45 F)/(2)= 48 F`

The number of heating degree days can be calculated by:

H= 65°F - 48°F

H= 17 °F

The number of heating degree days is 17 (option c).