Question

(a) The top of a hill rises 140 feet above Checkpoint 3. checkpoint 3 is -217What is the altitude of the top of the hill?

Answer 1

altitude of the top of the hill = -77 feet

Step-by-step explanation:

check point 3 = -217 feet

Top of hill is 140 feet above check point 3. This means we would add the distance above the check point 3 and check point 3 to get the distance or altitude to the top of the hill

altitude of the top of the hill = 140 feet + (-217) feet

Multiplication of same sign gives positive number. Multiplication of opposite signs give negative number.

There is a positive and negative sign (opposite signs). This means the result will be negative

altitude of the top of the hill = 140 feet - 217 feet

altitude of the top of the hill = -77 feet