Fill in the blanks.
Adam and Bryan have 20 stickers.
Adam and Charlie have 32 stickers.
Charlie has thrice as many as stickers as Bryan.
- Number of stickers that Charlie has = _____ u
- 1 u = _____
- Number of stickers that Adam has = _____
(a)
Change information into units.
Charlie has thrice as many as stickers as Bryan.
Number of stickers that Bryan has = 1 u
Number of stickers that Charlie has = 3 u
(b)
Adam + 1 u = 20 --- (1)
Adam + 3 u = 32 --- (2)
(2) - (1)
3 u - 1 u = 32 - 20
2 u = 12
1 u = 12 ÷ 2 = 6
(c)
Number of stickers that Adam has
= 20 - 1 u
= 20 - 6
= 14
Answer(s): (a) 3; (b) 6; (c) 14