Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
29 of the stickers that Bryan has is 10 less than
27 of what Adam has.
Let
27 of Adam's stickers be 2 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.
27 of Adam's stickers → 2 u
17 of Adam's stickers → 1 u
77 of Adam's stickers → 7 u
Number of Adam's stickers = 7 u
(b)
29 of Bryan's stickers → 2 u - 10
19 of Bryan's stickers → 2 u - 10 = (2 u - 10) ÷ 2 = 1 u - 5
99 of Bryan's stickers → 9 x (1 u - 5) = 9 u - 45
Number of Bryan's stickers = 9 u - 45
(c)
Total number of stickers
= 7 u + 9 u - 45
= 16 u - 45
(d)
Difference in the number of stickers between Bryan and Adam
= (9 u - 45) - 7 u
= 9 u - 7 u - 45
= 2 u - 45
Answer(s): (a) 7 u; (b) 9 u - 45; (c) 16 u - 45 ; (d) 2 u - 45