Zeph saved $11 each day and Nicole saved $
s more than Zeph each day. After 6 weeks, they were still short of $30 to buy a computer.
- How much did the computer cost? Express your answer in terms of s.
- If s = $14, how much did the computer cost?
(a)
Amount Zeph saved per day = $11
Amount Nicole saved per day = $(11 +
s)
Total amount both saved per day
= 11 + 11 +
s = $(22 +
s)
Number of days in 6 weeks
= 6 x 7
= 42
Total both saved in 6 weeks
= 42(22 +
s)
= 42 x 22 + 42 x
s = $(924 + 42
s)
Cost of the computer
= 924 + 42
s + 30
= 924 + 30 + 42
s= $(954 + 42
s)
(b)
If
s = $14,
Cost of the computer
= 954 + 42 x 14
= 954 + 588
= $1542
Answer(s): (a) $(954 + 42
s) or $(42
s + 954); (b) $1542
