One stamp costs $
i. One stapler costs $(
i + 15). One story book costs $4
i.
- Asher bought 3 stamps, 3 staplers and 1 story book. How much did he spend? Simplify your answer in terms of i.
- If i = 18, how much did Asher spend altogether?
(a)
Cost of 3 stamps = 3 x
i = $3
i Cost of 3 staplers = 3 x (
i + 15) = $(3
i + 45)
Cost of 1 story book = $4
i Total amount that he spent
= 3
i + 3
i + 45 + 4
i= 3
i + 3
i + 4
i + 45
= $(10
i + 45)
(b)
If
i = 18,
total amount that he spent
= 10
i + 45
= (10 x 18) + 45
= 180 + 45
= $225
Answer(s): (a) $(10
i + 45) or $(45 + 10
i); (b) $225