Question 885835: If garden soil cost r centavos per kilogram, how many kilograms may be brought for $500
a) 50/r
b) 50000/r
c) r/500
d) 500r
e) 500/r Found 2 solutions by josgarithmetic, MathTherapy:Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website! Comparison of cost to mass would be the same.
Let x = how many kilograms may be bought
.
r is an unknown constant. x is an unknown variable to be solved.