Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have some stickers.
27 of the stickers Adam has is 22 less than
49 of what Bryan has.
Let
49 of Bryan's stickers be 4 u.
- Number of stickers that Bryan has = ___________
- Number of stickers that Adam has = ___________
- Total number of stickers = ___________
- Difference in the number of stickers between Adam and Bryan = ___________
(a)
Change fraction into units.
49 of Bryan's stickers → 4 u
19 of Bryan's stickers → 1 u
99 of Bryan's stickers → 9 u
Number of Bryan's stickers = 9 u
(b)
27 of Adam's stickers → 4 u - 22
17 of Adam's stickers → (4 u - 22) ÷ 2 = 2 u - 11
77 of Adam's stickers → 7 x (2 u - 11) = 14 u - 77
Number of Adam's stickers = 14 u - 77
(c)
Total number of stickers
= 9 u + 14 u - 77
= 23 u - 77
(d)
Difference in the number of stickers between Adam and Bryan
= (14 u - 77) - 9 u
= 14 u - 9 u - 77
= 5 u - 77
Answer(s): (a) 9 u; (b) 14 u - 77; (c) 23 u - 77; (d) 5 u - 77