Michael saved $8 each day and Ivory saved $
p more than Michael each day. After 5 weeks, they were still short of $29 to buy a hard drive.
- How much did the hard drive cost? Express your answer in terms of p.
- If p = $9, how much did the hard drive cost?
(a)
Amount Michael saved per day = $8
Amount Ivory saved per day = $(8 +
p)
Total amount both saved per day
= 8 + 8 +
p = $(16 +
p)
Number of days in 5 weeks
= 5 x 7
= 35
Total both saved in 5 weeks
= 35(16 +
p)
= 35 x 16 + 35 x
p = $(560 + 35
p)
Cost of the hard drive
= 560 + 35
p + 29
= 560 + 29 + 35
p= $(589 + 35
p)
(b)
If
p = $9,
Cost of the hard drive
= 589 + 35 x 9
= 589 + 315
= $904
Answer(s): (a) $(589 + 35
p) or $(35
p + 589); (b) $904
