Pierre saved $10 each day and Anna saved $
t more than Pierre each day. After 5 weeks, they were still short of $32 to buy a computer.
- How much did the computer cost? Express your answer in terms of t.
- If t = $16, how much did the computer cost?
(a)
Amount Pierre saved per day = $10
Amount Anna saved per day = $(10 +
t)
Total amount both saved per day
= 10 + 10 +
t = $(20 +
t)
Number of days in 5 weeks
= 5 x 7
= 35
Total both saved in 5 weeks
= 35(20 +
t)
= 35 x 20 + 35 x
t = $(700 + 35
t)
Cost of the computer
= 700 + 35
t + 32
= 700 + 32 + 35
t= $(732 + 35
t)
(b)
If
t = $16,
Cost of the computer
= 732 + 35 x 16
= 732 + 560
= $1292
Answer(s): (a) $(732 + 35
t) or $(35
t + 732); (b) $1292
