Fill in the blanks.
Bryan and Adam have 19 stickers.
Bryan and Charlie have 39 stickers.
Charlie has five times as many as stickers as Adam.
- Number of stickers that Charlie has = _____ u
- 1 u = _____
- Number of stickers that Bryan has = _____
(a)
Change information into units.
Charlie has five times as many as stickers as Adam.
Number of stickers that Adam has = 1 u
Number of stickers that Charlie has = 5 u
(b)
Bryan + 1 u = 19 --- (1)
Bryan + 5 u = 39 --- (2)
(2) - (1)
5 u - 1 u = 39 - 19
4 u = 20
1 u = 20 ÷ 4 = 5
(c)
Number of stickers that Bryan has
= 19 - 1 u
= 19 - 5
= 14
Answer(s): (a) 5; (b) 5; (c) 14