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 that Bryan has is 8 less than
45 of what Adam has.
Let
45 of Adam's stickers be 4 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.
45 of Adam's stickers → 4 u
15 of Adam's stickers → 1 u
55 of Adam's stickers → 5 u
Number of Adam's stickers = 5 u
(b)
47 of Bryan's stickers → 4 u - 8
17 of Bryan's stickers → 4 u - 8 = (4 u - 8) ÷ 4 = 1 u - 2
77 of Bryan's stickers → 7 x (1 u - 2) = 7 u - 14
Number of Bryan's stickers = 7 u - 14
(c)
Total number of stickers
= 5 u + 7 u - 14
= 12 u - 14
(d)
Difference in the number of stickers between Bryan and Adam
= (7 u - 14) - 5 u
= 7 u - 5 u - 14
= 2 u - 14
Answer(s): (a) 5 u; (b) 7 u - 14; (c) 12 u - 14 ; (d) 2 u - 14