A pencil costs $0.27 and a pen costs $0.32. You buy six pencils and the total cost is $4.18. How many pens did you buy?
2 Answers
Explanation:
Let's model our situation with an equation.
We're going to have two variables, one for pencils and one for pens.
Let
We are given our cost,
What we're really being asked is to solve for
So, we bought
8 pens
Explanation:
say i bought
so
similarly ,
total cost = cost of x pencils +cost of y pens
4.18 =
so
so i bought 8 pens