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 54°F and the low temperature for the same day was 46°F, what is the number of heating degree days?

15
115
50
11

Answer 1

15

Explanation:

T is the average of the high and low temperatures for the day.

Calculate the average for the two temperatures

Average =
`(54 + 46)/(2)` =
`(100)/(2)` = 50°F

Average = 50°F

T = 50°F

H = 65 - T

H = 65 - 50

H = 15