The change in altitude for all 6 balloons for 5 minutes = 6 × 1300 = 7800 feet
Explanation:
Step 1 :
Number of balloons = 6
Height descended per minute = 260 feet
Total time of descent = 5 minutes
We need to determine the total change in altitude for all the 6 balloons
Step 2 :
The change in altitude for 1 balloon for 1 minute = 260 feet
The change in altitude for 1 balloon for 5 minutes = 5 × 260 = 1300 feet
Therefore
the change in altitude for all 6 balloons for 5 minutes = 6 × 1300 = 7800 feet
Step 3 :
Answer :
The change in altitude for all 6 balloons for 5 minutes = 6 × 1300 = 7800 feet