Fill in the blanks.
For (a) to (d), give the answers in units (Eg 1 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have some stickers.
15 of Adam's stickers is 4 less than
17 of Bryan's stickers.
Let
15 of Adam's stickers be 1 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)
15 of Adam's stickers = 1 u
55 of Adam's stickers = 5 u
(b)
17 of Bryan's stickers =
15 of Adam's stickers + 4
17 of Bryan's stickers = 1 u + 4
77 of Bryan's stickers = 7(1 u + 4) = 7 u + 28
(c)
Total number of stickers
= 5 u + 7 u + 28
= 12 u + 28
(d)
Difference in the number of stickers between Bryan and Adam
= 7 u + 28 - 5 u
= 7 u - 5 u + 28
= 2 u + 28
Answer(s): (a) 5 u; (b) 7 u + 28; (c) 12 u + 28; (d) 2 u + 28