Jenson saved $11 each day and Hilda saved $
r more than Jenson each day. After 6 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 r.
- If r = $18, how much did the massage chair cost?
(a)
Amount Jenson saved per day = $11
Amount Hilda saved per day = $(11 +
r)
Total amount both saved per day
= 11 + 11 +
r = $(22 +
r)
Number of days in 6 weeks
= 6 x 7
= 42
Total both saved in 6 weeks
= 42(22 +
r)
= 42 x 22 + 42 x
r = $(924 + 42
r)
Cost of the massage chair
= 924 + 42
r + 31
= 924 + 31 + 42
r= $(955 + 42
r)
(b)
If
r = $18,
Cost of the massage chair
= 955 + 42 x 18
= 955 + 756
= $1711
Answer(s): (a) $(955 + 42
r) or $(42
r + 955); (b) $1711
