Fill in the blanks.
Bryan and Charlie have 23 stickers.
Bryan and Adam have 31 stickers.
Adam has five times 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 five times as many as stickers as Charlie.
Number of stickers that Charlie has = 1 u
Number of stickers that Adam has = 5 u
(b)
Bryan + 1 u = 23 --- (1)
Bryan + 5 u = 31 --- (2)
(2) - (1)
5 u - 1 u = 31 - 23
4 u = 8
1 u = 8 ÷ 4 = 2
(c)
Number of stickers that Bryan has
= 23 - 1 u
= 23 - 2
= 21
Answer(s): (a) 5; (b) 2; (c) 21