SOLUTION: A Car Travels For X Hours At Speed Of (x+2)km/h.if The Distance Travelled Is 15km.rite Do An Equation Of X

Question 701024:
A Car Travels For X Hours At Speed Of (x+2)km/h.if The Distance Travelled Is 15km.rite Do An Equation Of X
Found 2 solutions by josmiceli, checkley79:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

given:
km
hrs
km/hr
------------------

( ignore the negative answer )

Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
D=RT
15=(X+2)X
15=X^2+2X
X^2+2X-15=0
(X+5)(X-3)=0
X-3=0
X=3 HOURS.
R=3+2=5 KM PER HOUR.
PROOF:
15=3*5
15=15
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