One card costs $
c. One stapler costs $(
c + 15). One story book costs $4
c.
- Andy bought 5 cards, 3 staplers and 1 story book. How much did he spend? Simplify your answer in terms of c.
- If c = 15, how much did Andy spend altogether?
(a)
Cost of 5 cards = 5 x
c = $5
c Cost of 3 staplers = 3 x (
c + 15) = $(3
c + 45)
Cost of 1 story book = $4
c Total amount that he spent
= 5
c + 3
c + 45 + 4
c= 5
c + 3
c + 4
c + 45
= $(12
c + 45)
(b)
If
c = 15,
total amount that he spent
= 12
c + 45
= (12 x 15) + 45
= 180 + 45
= $225
Answer(s): (a) $(12
c + 45) or $(45 + 12
c); (b) $225