Fill in the blanks in units (Eg 1 u) or unit equations (Eg 1 u + 2).
Charlie, Adam and Bryan have some stickers.
Bryan has
79 as many as Charlie.
Adam has 30 less stickers than Bryan.
Let the number of stickers that Charlie has be 9 u.
- Number of stickers that Bryan has = _____
- Number of stickers that Adam has = _____
- Total number of stickers = _____
- Number of stickers that Charlie has more than Adam = _____
(a)
Let the number of stickers that Charlie has = 9 u
Number of stickers that Bryan has = 7 u
(b)
Number of stickers that Adam has = 7 u - 30
(c)
Total number of stickers
= 9 u + 7 u + 7 u - 30
= 23 u - 30
(d)
Number of stickers that Charlie has more than Adam
= 9 u - (7 u - 30)
= 9 u - 7 u + 30
= 2 u + 30
Answer(s): (a) 7 u; (b) 7 u - 30; (c) 23 u - 30; (d) 2 u + 30