Seth saved $11 each day and Lynn saved $
q more than Seth each day. After 5 weeks, they were still short of $32 to buy a projector.
- How much did the projector cost? Express your answer in terms of q.
- If q = $3, how much did the projector cost?
(a)
Amount Seth saved per day = $11
Amount Lynn saved per day = $(11 +
q)
Total amount both saved per day
= 11 + 11 +
q = $(22 +
q)
Number of days in 5 weeks
= 5 x 7
= 35
Total both saved in 5 weeks
= 35(22 +
q)
= 35 x 22 + 35 x
q = $(770 + 35
q)
Cost of the projector
= 770 + 35
q + 32
= 770 + 32 + 35
q= $(802 + 35
q)
(b)
If
q = $3,
Cost of the projector
= 802 + 35 x 3
= 802 + 105
= $907
Answer(s): (a) $(802 + 35
q) or $(35
q + 802); (b) $907
