SOLUTION: Question#1 Two planes leave an airport in England at approximately the same time and fly in opposite directions. How far apart are the planes after 1 hour and 20 minutes if plan

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Question 834275: Question#1
Two planes leave an airport in England at approximately the same time and fly in opposite directions. How far apart are the planes after 1 hour and 20 minutes if plane A's speed is 480 miles per hour and plane B's speed is 600 miles per hour?

870 miles

1440 miles

1250 miles

1064 miles

980 miles

1100 miles


Question #2
Leaving from home on the first part of a 317 mile trip Jim drove at 58 miles an hour and made a pit stop in Ely at the Sinclair station. After getting some coffee he proceeded south on 93 with a velocity of only 52 miles per hour for the remainder of the trip because it started to snow. He finally got to his destination after driving 5 hours and 45 minutes, neglecting the time for coffee. How far is Ely from his home?

288 miles

212 miles

264 miles

185 miles

232 miles

174 miles

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Question Number 2 is faulty. We are not given all the directions in which Jim traveled. South for one part, but what about the other parts?

Question Number 1:
That is like asking "what is the sum of their distances" after the given amount of fly time. The two planes are going in opposite directions.

1 hour 20 minutes is the same as 1%261%2F3 hours;
480%2A1%261%2F3%2B600%2A1%261%2F3, which simply uses Rate*Time=Distance.
%281%261%2F3%29%28480%2B600%29
%281%261%2F3%29%281080%29 miles...