Fill in the blanks.
Adam and Charlie have 12 stickers.
Adam and Bryan have 45 stickers.
Bryan has four times 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 four times as many as stickers as Charlie.
Number of stickers that Charlie has = 1 u
Number of stickers that Bryan has = 4 u
(b)
Adam + 1 u = 12 --- (1)
Adam + 4 u = 45 --- (2)
(2) - (1)
4 u - 1 u = 45 - 12
3 u = 33
1 u = 33 ÷ 3 = 11
(c)
Number of stickers that Adam has
= 12 - 1 u
= 12 - 11
= 1
Answer(s): (a) 4; (b) 11; (c) 1