Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
37 of the stickers that Bryan has is 9 less than
35 of what Adam has.
Let
35 of Adam's stickers be 3 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.
35 of Adam's stickers → 3 u
15 of Adam's stickers → 1 u
55 of Adam's stickers → 5 u
Number of Adam's stickers = 5 u
(b)
37 of Bryan's stickers → 3 u - 9
17 of Bryan's stickers → 3 u - 9 = (3 u - 9) ÷ 3 = 1 u - 3
77 of Bryan's stickers → 7 x (1 u - 3) = 7 u - 21
Number of Bryan's stickers = 7 u - 21
(c)
Total number of stickers
= 5 u + 7 u - 21
= 12 u - 21
(d)
Difference in the number of stickers between Bryan and Adam
= (7 u - 21) - 5 u
= 7 u - 5 u - 21
= 2 u - 21
Answer(s): (a) 5 u; (b) 7 u - 21; (c) 12 u - 21 ; (d) 2 u - 21