Question 851368
C 40=RT OR T=40/R
P 15=(R-20)T OR T=15/(R-20)
40/R=15/(R-20)
15R=40(R-20
15R=405-800
15R-40R=-800
-25R=-800
R=-800/-25
R=32 MPH FOR CARLOS' SPEED.
32-20=12 MPH FOR PAUL.
PROOF:
40/32=15/12
1.25=1.25