Fill in the blanks.
Charlie and Adam have 20 stickers.
Charlie and Bryan have 30 stickers.
Bryan has six 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 six times as many as stickers as Adam.
Number of stickers that Adam has = 1 u
Number of stickers that Bryan has = 6 u
(b)
Charlie + 1 u = 20 --- (1)
Charlie + 6 u = 30 --- (2)
(2) - (1)
6 u - 1 u = 30 - 20
5 u = 10
1 u = 10 ÷ 5 = 2
(c)
Number of stickers that Charlie has
= 20 - 1 u
= 20 - 2
= 18
Answer(s): (a) 6; (b) 2; (c) 18