Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
47 of the stickers Bryan has is 20 less than
89 of what Adam has.
Let
89 of Adam's stickers be 8 u.
- Number of stickers that Adam has = ___________
- Number of stickers that Bryan has = ___________
- Total number of stickers = ___________
- Difference in the number of stickers between Bryan and Adam = ___________
(a)
Change fraction into units.
89 of Adam's stickers → 8 u
19 of Adam's stickers → 1 u
99 of Adam's stickers → 9 u
Number of Adam's stickers = 9 u
(b)
47 of Bryan's stickers → 8 u - 20
17 of Bryan's stickers → (8 u - 20) ÷ 4 = 2 u - 5
77 of Bryan's stickers → 7 x (2 u - 5) = 14 u - 35
Number of Bryan's stickers = 14 u - 35
(c)
Total number of stickers
= 9 u + 14 u - 35
= 23 u - 35
(d)
Difference in the number of stickers between Bryan and Adam
= (14 u - 35) - 9 u
= 14 u - 9 u - 35
= 5 u - 35
Answer(s): (a) 9 u; (b) 14 u - 35; (c) 23 u - 35; (d) 5 u - 35