Question

The coldest temperature ever recorded in Mathville was -14°F. This happened on January 30th, 1987. The normal low for that day is 20°F How much was the difference between the normal low temperature and the record low temperature?

Answer 1

Difference between normal low and the recorded low temperature was 34°

Explanation:

The coldest temperature recorded in Mathville = -14° F

The normal low for that day was = 20°F

That means on that day normal temperature was 20°F which fell down to 0°F and then 20°F below from 0° F.

So net change in the temperature was = Fall from 20°F to 0° F + Fall from 0°F to -14°F

= 20° + 14°

= 34°

Therefore, difference between normal low and the recorded low temperature was 34°

Answer 2

Answer: 34°F.

Explanation:

Given: The coldest temperature ever recorded in Mathville =-14°F.

The normal low for that day = 20°F

The difference between the normal low temperature and the record low temperature is given by

d= |20°F-(-14°F )|= |20°F+14°F|=34°F [Since in integers
`a-(-b)=a+b`]

Hence, the difference between the normal low temperature and the record low temperature is 34°F.