The average daily temperature at a certain location ranges f

The average daily temperature at a certain location ranges from -15 degreesF on the coldest day in winter to 88 degrees F on the warmest day in summer. What is the difference between these two temperatures?

Solution

avg temparature on coldest day x=-15degreesF

avg temparature on warmest day y=88degreesF

difference= y-x

=88-(-15)

=88+15

=103