Julian saved $9 each day and Emma saved $
h more than Julian 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 h.
- If h = $5, how much did the printer cost?
(a)
Amount Julian saved per day = $9
Amount Emma saved per day = $(9 +
h)
Total amount both saved per day
= 9 + 9 +
h = $(18 +
h)
Number of days in 6 weeks
= 6 x 7
= 42
Total both saved in 6 weeks
= 42(18 +
h)
= 42 x 18 + 42 x
h = $(756 + 42
h)
Cost of the printer
= 756 + 42
h + 30
= 756 + 30 + 42
h= $(786 + 42
h)
(b)
If
h = $5,
Cost of the printer
= 786 + 42 x 5
= 786 + 210
= $996
Answer(s): (a) $(786 + 42
h) or $(42
h + 786); (b) $996
