Question 344798
D=RT
144=(x+x+10)1.6
144=(2x+10)1.6
144=3.2x+16
3.2x=144-16
3.2x=128
x=128/3.2
x=40 mph. for the slower car.
40+10=50 mph. for the faster car.
Proof:
144=(40+50)1.6
144=90*1.6
144=144
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IF the answers are 50 & 60 MPH. then:
144=(60+70)1.6
144=130*1.6
144=208 DOES NOT COMPUTE??????????