Andy saved $11 each day and Victorium saved $
s more than Andy each day. After 3 weeks, they were still short of $31 to buy a tablet.
- How much did the tablet cost? Express your answer in terms of s.
- If s = $2, how much did the tablet cost?
(a)
Amount Andy saved per day = $11
Amount Victorium saved per day = $(11 +
s)
Total amount both saved per day
= 11 + 11 +
s = $(22 +
s)
Number of days in 3 weeks
= 3 x 7
= 21
Total both saved in 3 weeks
= 21(22 +
s)
= 21 x 22 + 21 x
s = $(462 + 21
s)
Cost of the tablet
= 462 + 21
s + 31
= 462 + 31 + 21
s= $(493 + 21
s)
(b)
If
s = $2,
Cost of the tablet
= 493 + 21 x 2
= 493 + 42
= $535
Answer(s): (a) $(493 + 21
s) or $(21
s + 493); (b) $535
