Fill in the blanks in decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 40% 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
|
Adam |
Bryan |
Before |
3 u |
2 u |
Change |
|
- 0.6 u |
After |
3 u |
1.4 u |
(a)
Change percentage into units.
40% =
40100 =
25Fraction of the stickers that Bryan has at first =
25 Number of stickers that Bryan has at first = 2 u
(b)
Change in the number of stickers that Bryan has
= 30% x 2 u
=
30100 x 2 u
= 0.3 x 2 u
= 0.6 u
(c)
Number of stickers that Bryan has in the end
= 2 u - 0.6 u
= 1.4 u
(d)
Fraction of the number of stickers that Adam has at first
= 1 -
25 =
35 There is no change in the number of stickers that Adam has.
Number of stickers that Adam has in the end = 3 u
Answer(s): (a) 2; (b) 0.6; (c) 1.4; (d) 3