Fill in the blanks.
Charlie and Adam have 25 stickers.
Charlie and Bryan have 31 stickers.
Bryan has four times as many as stickers as Adam.
- Number of stickers that Bryan has = _____ u
- 1 u = _____
- Number of stickers that Charlie has = _____
(a)
Change information into units.
Bryan has four times as many as stickers as Adam.
Number of stickers that Adam has = 1 u
Number of stickers that Bryan has = 4 u
(b)
Charlie + 1 u = 25 --- (1)
Charlie + 4 u = 31 --- (2)
(2) - (1)
4 u - 1 u = 31 - 25
3 u = 6
1 u = 6 ÷ 3 = 2
(c)
Number of stickers that Charlie has
= 25 - 1 u
= 25 - 2
= 23
Answer(s): (a) 4; (b) 2; (c) 23