Fill in the blanks.
Bryan and Charlie have 43 stickers.
Bryan and Adam have 47 stickers.
Adam has thrice as many as stickers as Charlie.
- Number of stickers that Adam has = _____ u
- 1 u = _____
- Number of stickers that Bryan has = _____
(a)
Change information into units.
Adam has thrice as many as stickers as Charlie.
Number of stickers that Charlie has = 1 u
Number of stickers that Adam has = 3 u
(b)
Bryan + 1 u = 43 --- (1)
Bryan + 3 u = 47 --- (2)
(2) - (1)
3 u - 1 u = 47 - 43
2 u = 4
1 u = 4 ÷ 2 = 2
(c)
Number of stickers that Bryan has
= 43 - 1 u
= 43 - 2
= 41
Answer(s): (a) 3; (b) 2; (c) 41