Problem
Aaliyah had $24 to spend on seven pencils. After buying them she had $10. How
much did each pencil cost?
Let x =
Solution
for this case we can solve the problem with the following division
C= 24-10 = 14
And then the unitary cost can be founded like this:
14= 7x
x= 14/7= 2
So then each pencil cost $2