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 6 less than
25 of what Adam has.
Let
25 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.
25 of Adam's stickers → 2 u
15 of Adam's stickers → 1 u
55 of Adam's stickers → 5 u
Number of Adam's stickers = 5 u
(b)
29 of Bryan's stickers → 2 u - 6
19 of Bryan's stickers → 2 u - 6 = (2 u - 6) ÷ 2 = 1 u - 3
99 of Bryan's stickers → 9 x (1 u - 3) = 9 u - 27
Number of Bryan's stickers = 9 u - 27
(c)
Total number of stickers
= 5 u + 9 u - 27
= 14 u - 27
(d)
Difference in the number of stickers between Bryan and Adam
= (9 u - 27) - 5 u
= 9 u - 5 u - 27
= 4 u - 27
Answer(s): (a) 5 u; (b) 9 u - 27; (c) 14 u - 27 ; (d) 4 u - 27