Question 117628
40X+3(3-X)=23
40X+9-3X=23
37X=23-9
37X=14
X=14/37
X=.3784 HOURS FOR THE TIME OF THE BUS RIDE.
3-.3784=2.6216 HOURS FOR THE WALKING TIME.
PROOF:
.3784*40+3(2.6216)=23
15.136+7.864=23
23=23