Problema Solution
If 38 of the money in Rebecca’s savings account is enough to cover half the cost of a new car, how much of the money in her savings account will she need to cover the entire cost?
Answer provided by our tutors
let
c = the cost of the car
x = the money Rebecca has on her saving account
if 38% of the money in Rebecca’s savings account is enough to cover half the cost of a new car we have
0.38x = c/2
c/2 = 0.38x multiply both sides by 2
c = 2*0.38x
c = 0.76x
76% of Rebecca’s savings account is enough to cover the entire cost.