Bryan saved $12 each day and Natalie saved $
n more than Bryan each day. After 2 weeks, they were still short of $29 to buy a projector.
- How much did the projector cost? Express your answer in terms of n.
- If n = $16, how much did the projector cost?
(a)
Amount Bryan saved per day = $12
Amount Natalie saved per day = $(12 +
n)
Total amount both saved per day
= 12 + 12 +
n = $(24 +
n)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(24 +
n)
= 14 x 24 + 14 x
n = $(336 + 14
n)
Cost of the projector
= 336 + 14
n + 29
= 336 + 29 + 14
n= $(365 + 14
n)
(b)
If
n = $16,
Cost of the projector
= 365 + 14 x 16
= 365 + 224
= $589
Answer(s): (a) $(365 + 14
n) or $(14
n + 365); (b) $589
