Question 97091
DISTANCE=RATE*TIME OR DISTANCE/RATE=TIME
SEEING AS THE TIMES ARE EQUAL THEN:
160/(R+3)=145/R NOW CROSS MULTIPLY
160R=145R+435
160R-145R=435
15R=435
R=435/15
R=29 MPH IS THE SPEED OF DIANE.
29+3=32 MPH IS THE SPPED OF CHUCK.
PROOF
160/32=145/29
5=5