Fill in the blanks in decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 45% of the total.
If Bryan gives away some stickers,
his number of stickers decreases by 20%.
- 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 |
11 u |
9 u |
Change |
|
- 1.8 u |
After |
11 u |
7.2 u |
(a)
Change percentage into units.
45% =
45100 =
920Fraction of the stickers that Adam has at first =
920 Number of stickers that Adam has at first = 9 u
(b)
Change in the number of stickers that Adam has
= 20% x 9 u
=
20100 x 9 u
= 0.2 x 9 u
= 1.8 u
(c)
Number of stickers that Adam has in the end
= 9 u - 1.8 u
= 7.2 u
(d)
Fraction of the number of stickers that Bryan has at first
= 1 -
920 =
1120 There is no change in the number of stickers that Bryan has.
Number of stickers that Bryan has in the end = 11 u
Answer(s): (a) 9; (b) 1.8; (c) 7.2; (d) 11