Justin saved $12 each day and Xylium saved $
q more than Justin each day. After 2 weeks, they were still short of $32 to buy a massage chair.
- How much did the massage chair cost? Express your answer in terms of q.
- If q = $14, how much did the massage chair cost?
(a)
Amount Justin saved per day = $12
Amount Xylium saved per day = $(12 +
q)
Total amount both saved per day
= 12 + 12 +
q = $(24 +
q)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(24 +
q)
= 14 x 24 + 14 x
q = $(336 + 14
q)
Cost of the massage chair
= 336 + 14
q + 32
= 336 + 32 + 14
q= $(368 + 14
q)
(b)
If
q = $14,
Cost of the massage chair
= 368 + 14 x 14
= 368 + 196
= $564
Answer(s): (a) $(368 + 14
q) or $(14
q + 368); (b) $564
