Peter saved $8 each day and Lynn saved $
g more than Peter each day. After 2 weeks, they were still short of $30 to buy a massage chair.
- How much did the massage chair cost? Express your answer in terms of g.
- If g = $17, how much did the massage chair cost?
(a)
Amount Peter saved per day = $8
Amount Lynn saved per day = $(8 +
g)
Total amount both saved per day
= 8 + 8 +
g = $(16 +
g)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(16 +
g)
= 14 x 16 + 14 x
g = $(224 + 14
g)
Cost of the massage chair
= 224 + 14
g + 30
= 224 + 30 + 14
g= $(254 + 14
g)
(b)
If
g = $17,
Cost of the massage chair
= 254 + 14 x 17
= 254 + 238
= $492
Answer(s): (a) $(254 + 14
g) or $(14
g + 254); (b) $492
