Question

Given: -4 - (-7), use this expression and the idea of a balloon model to describe what happens to the hot air balloon.

a. Where does the balloon start?



b. Do you add or subtract something from the balloon?



c. What do you add or subtract from the balloon?



d. Where does the balloon end up?

Answer 1

Explanation:

-4 - (-7) = -4+7=3

For a. the balloon starts at -4

for B. your adding something to the balloon

For c. your adding 7 to -4

for D. the balloon ends up and 3