Nick saved $11 each day and Linda saved $
m more than Nick each day. After 4 weeks, they were still short of $31 to buy a massage chair.
- How much did the massage chair cost? Express your answer in terms of m.
- If m = $5, how much did the massage chair cost?
(a)
Amount Nick saved per day = $11
Amount Linda saved per day = $(11 +
m)
Total amount both saved per day
= 11 + 11 +
m = $(22 +
m)
Number of days in 4 weeks
= 4 x 7
= 28
Total both saved in 4 weeks
= 28(22 +
m)
= 28 x 22 + 28 x
m = $(616 + 28
m)
Cost of the massage chair
= 616 + 28
m + 31
= 616 + 31 + 28
m= $(647 + 28
m)
(b)
If
m = $5,
Cost of the massage chair
= 647 + 28 x 5
= 647 + 140
= $787
Answer(s): (a) $(647 + 28
m) or $(28
m + 647); (b) $787
