Fill in the blanks in units (Eg 1 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
Adam uses
79 of his stickers and
Bryan buys 27 more stickers.
In the end, the number of stickers that Bryan and Adam have is in the ratio of 3 : 5.
- Number of stickers that Adam has in the end = _____
- Number of stickers that Adam has at first = _____
- Number of stickers that Bryan has at first = _____
- Total number of stickers that they have at first = _____
|
Bryan |
Adam |
Before |
6 u - 27 |
9 x 5 = 45 u |
Change |
+ 27 |
- 7 x 5 = - 35 u |
After |
6 u |
2 x 5 = 10 u |
Comparing Bryan and Adam in the end |
3 x 2 = 6 u |
5 x 2 = 10 u |
(a)
The number of stickers that Adam has in the end is repeated. Use LCM to make them the same.
LCM of 2 and 5 = 10
Number of stickers that Adam has in the end = 10 u
(b)
Number of stickers that Adam has at first = 45 u
(c)
Number of stickers that Bryan has at first
= 6 u - 27
(d)
Total number of stickers that they have at first
= 6 u - 27 + 45 u
= 6 u + 45 u - 27
= 51 u - 27
Answer(s): (a) 10 u; (b) 45 u; (c) 6 u - 27; (d) 51 u - 27