Perry saved $10 each day and Nicole saved $
n more than Perry each day. After 6 weeks, they were still short of $30 to buy a printer.
- How much did the printer cost? Express your answer in terms of n.
- If n = $16, how much did the printer cost?
(a)
Amount Perry saved per day = $10
Amount Nicole saved per day = $(10 +
n)
Total amount both saved per day
= 10 + 10 +
n = $(20 +
n)
Number of days in 6 weeks
= 6 x 7
= 42
Total both saved in 6 weeks
= 42(20 +
n)
= 42 x 20 + 42 x
n = $(840 + 42
n)
Cost of the printer
= 840 + 42
n + 30
= 840 + 30 + 42
n= $(870 + 42
n)
(b)
If
n = $16,
Cost of the printer
= 870 + 42 x 16
= 870 + 672
= $1542
Answer(s): (a) $(870 + 42
n) or $(42
n + 870); (b) $1542
