suppose it is 800 miles from New York to California. Sara drive a car towards Tom with speed of 45 miles an hour and Tom drive 65 miles an hour. How far Sara dr

Question

suppose it is 800 miles from New York to California. Sara drives a car towards Tom with speed of 45 miles an hour and Tom drives 65 miles an hour. How far Sara drives before meet?

Answer 1

Let t = the time each one drives

d = rt

45t + 65t = 800

110t = 800

t = 7.2727... hours

 

Sara: 45(7.2727) = 327.27 miles

Tom: 65(7.2727) = 472.73 miles