Fill in the blanks.
Adam and Charlie have 18 stickers.
Adam and Bryan have 46 stickers.
Bryan has thrice as many as stickers as Charlie.
- Number of stickers that Bryan has = _____ u
- 1 u = _____
- Number of stickers that Adam has = _____
(a)
Change information into units.
Bryan has thrice as many as stickers as Charlie.
Number of stickers that Charlie has = 1 u
Number of stickers that Bryan has = 3 u
(b)
Adam + 1 u = 18 --- (1)
Adam + 3 u = 46 --- (2)
(2) - (1)
3 u - 1 u = 46 - 18
2 u = 28
1 u = 28 ÷ 2 = 14
(c)
Number of stickers that Adam has
= 18 - 1 u
= 18 - 14
= 4
Answer(s): (a) 3; (b) 14; (c) 4