Question

Mr. and Mrs. Rivers left their house at 10:00 a.m. driving in opposite directions. Mr. Rivers drove at an average speed of 48 mph and Mrs. Rivers drove at an average speed of 36 mph. At what time will Mr. Rivers be 24 miles farther from home than Mrs. Rivers?

Answer 1

Answer:

Step-by-step explanation:

let after t hrs they are 24 miles apart.

48t+36t=24

84t=24

t=24/84=2/7 hrs

=2/7×60=120/7 minutes =17+1/7

=17minutes +1/7×60sec

=17 minutes +60/7 sec

=17 min 8 4/7 sec

10.00+00.17 =10.27

Time≈10.27 a.m.