Fill in the blanks.
Charlie and Bryan have 25 stickers.
Charlie and Adam have 46 stickers.
Adam has four times as many as stickers as Bryan.
- Number of stickers that Adam has = _____ u
- 1 u = _____
- Number of stickers that Charlie has = _____
(a)
Change information into units.
Adam has four times as many as stickers as Bryan.
Number of stickers that Bryan has = 1 u
Number of stickers that Adam has = 4 u
(b)
Charlie + 1 u = 25 --- (1)
Charlie + 4 u = 46 --- (2)
(2) - (1)
4 u - 1 u = 46 - 25
3 u = 21
1 u = 21 ÷ 3 = 7
(c)
Number of stickers that Charlie has
= 25 - 1 u
= 25 - 7
= 18
Answer(s): (a) 4; (b) 7; (c) 18