Reggie saved $11 each day and Gwen saved $
h more than Reggie each day. After 6 weeks, they were still short of $30 to buy a stereo system.
- How much did the stereo system cost? Express your answer in terms of h.
- If h = $5, how much did the stereo system cost?
(a)
Amount Reggie saved per day = $11
Amount Gwen saved per day = $(11 +
h)
Total amount both saved per day
= 11 + 11 +
h = $(22 +
h)
Number of days in 6 weeks
= 6 x 7
= 42
Total both saved in 6 weeks
= 42(22 +
h)
= 42 x 22 + 42 x
h = $(924 + 42
h)
Cost of the stereo system
= 924 + 42
h + 30
= 924 + 30 + 42
h= $(954 + 42
h)
(b)
If
h = $5,
Cost of the stereo system
= 954 + 42 x 5
= 954 + 210
= $1164
Answer(s): (a) $(954 + 42
h) or $(42
h + 954); (b) $1164
