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Paraphin [41]
3 years ago
13

A cargo plane left Los Angeles seven hours before an Air Force plane. The planes flew in opposite directions. The Air Force plan

e flew at 325 mph for two hours. After this time the planes were 5150 mi. apart. Find the cargo plane's speed.
Mathematics
1 answer:
cluponka [151]3 years ago
8 0

Answer:

speed of cargo plane = 642.857 miles per hr

Step-by-step explanation:

The planes moves in opposite direction . The cargo plane also left Los Angeles  7 hours before the Air force plane. This means the cargo plane has been travelling for 7 hrs before the Air force  plane moved.

Air force plane speed = 325 miles per hr

Air force plane time = 2 hrs

speed = distance/time

distance = speed × time

distance covered = 325 × 2 = 650 miles

Cargo plane speed = ?

cargo plane time = 7 hrs

distance covered = 5150 - 650 = 4500 mile

speed = distance/time

speed = 4500/7

speed of cargo plane = 642.857 miles per hr

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