Rael saved $9 each day and Betty saved $
e more than Rael each day. After 2 weeks, they were still short of $32 to buy a tablet.
- How much did the tablet cost? Express your answer in terms of e.
- If e = $14, how much did the tablet cost?
(a)
Amount Rael saved per day = $9
Amount Betty saved per day = $(9 +
e)
Total amount both saved per day
= 9 + 9 +
e = $(18 +
e)
Number of days in 2 weeks
= 2 x 7
= 14
Total both saved in 2 weeks
= 14(18 +
e)
= 14 x 18 + 14 x
e = $(252 + 14
e)
Cost of the tablet
= 252 + 14
e + 32
= 252 + 32 + 14
e= $(284 + 14
e)
(b)
If
e = $14,
Cost of the tablet
= 284 + 14 x 14
= 284 + 196
= $480
Answer(s): (a) $(284 + 14
e) or $(14
e + 284); (b) $480
