Fill in the blanks in decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 60% of the total.
If Bryan gives away some stickers,
his number of stickers decreases by 30%.
- Number of stickers that Bryan has at first = _____ u
- Change in the number of stickers that Bryan has = _____ u
- Number of stickers that Bryan has in the end = _____ u
- Number of stickers that Adam has in the end = _____ u
|
Bryan |
Adam |
Before |
2 u |
3 u |
Change |
|
- 0.9 u |
After |
2 u |
2.1 u |
(a)
Change percentage into units.
60% =
60100 =
35Fraction of the stickers that Adam has at first =
35 Number of stickers that Adam has at first = 3 u
(b)
Change in the number of stickers that Adam has
= 30% x 3 u
=
30100 x 3 u
= 0.3 x 3 u
= 0.9 u
(c)
Number of stickers that Adam has in the end
= 3 u - 0.9 u
= 2.1 u
(d)
Fraction of the number of stickers that Bryan has at first
= 1 -
35 =
25 There is no change in the number of stickers that Bryan has.
Number of stickers that Bryan has in the end = 2 u
Answer(s): (a) 3; (b) 0.9; (c) 2.1; (d) 2