Ben saved $11 each day and Olivium saved $
z more than Ben each day. After 2 weeks, they were still short of $32 to buy a printer.
- How much did the printer cost? Express your answer in terms of z.
- If z = $7, how much did the printer cost?
(a)
Amount Ben saved per day = $11
Amount Olivium saved per day = $(11 +
z)
Total amount both saved per day
= 11 + 11 +
z = $(22 +
z)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(22 +
z)
= 14 x 22 + 14 x
z = $(308 + 14
z)
Cost of the printer
= 308 + 14
z + 32
= 308 + 32 + 14
z= $(340 + 14
z)
(b)
If
z = $7,
Cost of the printer
= 340 + 14 x 7
= 340 + 98
= $438
Answer(s): (a) $(340 + 14
z) or $(14
z + 340); (b) $438
