Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have some stickers.
38 of the stickers Adam has is 21 less than
67 of what Bryan has.
Let
67 of Bryan's stickers be 6 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.
67 of Bryan's stickers → 6 u
17 of Bryan's stickers → 1 u
77 of Bryan's stickers → 7 u
Number of Bryan's stickers = 7 u
(b)
38 of Adam's stickers → 6 u - 21
18 of Adam's stickers → (6 u - 21) ÷ 3 = 2 u - 7
88 of Adam's stickers → 8 x (2 u - 7) = 16 u - 56
Number of Adam's stickers = 16 u - 56
(c)
Total number of stickers
= 7 u + 16 u - 56
= 23 u - 56
(d)
Difference in the number of stickers between Adam and Bryan
= (16 u - 56) - 7 u
= 16 u - 7 u - 56
= 9 u - 56
Answer(s): (a) 7 u; (b) 16 u - 56; (c) 23 u - 56; (d) 9 u - 56