Howard saved $11 each day and Yen saved $
w more than Howard 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 w.
- If w = $16, how much did the computer cost?
(a)
Amount Howard saved per day = $11
Amount Yen saved per day = $(11 +
w)
Total amount both saved per day
= 11 + 11 +
w = $(22 +
w)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(22 +
w)
= 14 x 22 + 14 x
w = $(308 + 14
w)
Cost of the computer
= 308 + 14
w + 31
= 308 + 31 + 14
w= $(339 + 14
w)
(b)
If
w = $16,
Cost of the computer
= 339 + 14 x 16
= 339 + 224
= $563
Answer(s): (a) $(339 + 14
w) or $(14
w + 339); (b) $563
