Zeph saved $11 each day and Opal saved $
g more than Zeph each day. After 6 weeks, they were still short of $29 to buy a hard drive.
- How much did the hard drive cost? Express your answer in terms of g.
- If g = $10, how much did the hard drive cost?
(a)
Amount Zeph saved per day = $11
Amount Opal saved per day = $(11 +
g)
Total amount both saved per day
= 11 + 11 +
g = $(22 +
g)
Number of days in 6 weeks
= 6 x 7
= 42
Total both saved in 6 weeks
= 42(22 +
g)
= 42 x 22 + 42 x
g = $(924 + 42
g)
Cost of the hard drive
= 924 + 42
g + 29
= 924 + 29 + 42
g= $(953 + 42
g)
(b)
If
g = $10,
Cost of the hard drive
= 953 + 42 x 10
= 953 + 420
= $1373
Answer(s): (a) $(953 + 42
g) or $(42
g + 953); (b) $1373
