Lee saved $10 each day and Kimberly saved $
h more than Lee each day. After 2 weeks, they were still short of $31 to buy a computer.
- How much did the computer cost? Express your answer in terms of h.
- If h = $13, how much did the computer cost?
(a)
Amount Lee saved per day = $10
Amount Kimberly saved per day = $(10 +
h)
Total amount both saved per day
= 10 + 10 +
h = $(20 +
h)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(20 +
h)
= 14 x 20 + 14 x
h = $(280 + 14
h)
Cost of the computer
= 280 + 14
h + 31
= 280 + 31 + 14
h= $(311 + 14
h)
(b)
If
h = $13,
Cost of the computer
= 311 + 14 x 13
= 311 + 182
= $493
Answer(s): (a) $(311 + 14
h) or $(14
h + 311); (b) $493
