Simon saved $12 each day and Betty saved $
t more than Simon each day. After 2 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 t.
- If t = $18, how much did the massage chair cost?
(a)
Amount Simon saved per day = $12
Amount Betty saved per day = $(12 +
t)
Total amount both saved per day
= 12 + 12 +
t = $(24 +
t)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(24 +
t)
= 14 x 24 + 14 x
t = $(336 + 14
t)
Cost of the massage chair
= 336 + 14
t + 31
= 336 + 31 + 14
t= $(367 + 14
t)
(b)
If
t = $18,
Cost of the massage chair
= 367 + 14 x 18
= 367 + 252
= $619
Answer(s): (a) $(367 + 14
t) or $(14
t + 367); (b) $619
