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
57 as many as Charlie.
Adam has 20 more than Bryan.
Let the number of stickers that Charlie has be 7 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 = 7 u
Number of stickers that Bryan has = 5 u
(b)
Number of stickers that Adam has = 5 u + 20
(c)
Total number of stickers
= 7 u + 5 u + 5 u + 20
= 17 u + 20
(d)
Number of stickers that Charlie has more than Adam
= 7 u - (5 u + 20)
= 7 u - 5 u - 20
= 2 u - 20
Answer(s): (a) 5 u; (b) 5 u + 20; (c) 17 u + 20; (d) 2 u - 20