Vaidev saved $12 each day and Ivory saved $
v more than Vaidev each day. After 3 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 v.
- If v = $6, how much did the massage chair cost?
(a)
Amount Vaidev saved per day = $12
Amount Ivory saved per day = $(12 +
v)
Total amount both saved per day
= 12 + 12 +
v = $(24 +
v)
Number of days in 3 weeks
= 3 x 7
= 21
Total both saved in 3 weeks
= 21(24 +
v)
= 21 x 24 + 21 x
v = $(504 + 21
v)
Cost of the massage chair
= 504 + 21
v + 32
= 504 + 32 + 21
v= $(536 + 21
v)
(b)
If
v = $6,
Cost of the massage chair
= 536 + 21 x 6
= 536 + 126
= $662
Answer(s): (a) $(536 + 21
v) or $(21
v + 536); (b) $662
