Ian saved $8 each day and Winnie saved $
h more than Ian each day. After 2 weeks, they were still short of $30 to buy a hard drive.
- How much did the hard drive cost? Express your answer in terms of h.
- If h = $2, how much did the hard drive cost?
(a)
Amount Ian saved per day = $8
Amount Winnie saved per day = $(8 +
h)
Total amount both saved per day
= 8 + 8 +
h = $(16 +
h)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(16 +
h)
= 14 x 16 + 14 x
h = $(224 + 14
h)
Cost of the hard drive
= 224 + 14
h + 30
= 224 + 30 + 14
h= $(254 + 14
h)
(b)
If
h = $2,
Cost of the hard drive
= 254 + 14 x 2
= 254 + 28
= $282
Answer(s): (a) $(254 + 14
h) or $(14
h + 254); (b) $282
