Fill in the blanks in decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 55% 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 |
9 u |
11 u |
Change |
|
- 2.2 u |
After |
9 u |
8.8 u |
(a)
Change percentage into units.
55% =
55100 =
1120Fraction of the stickers that Adam has at first =
1120 Number of stickers that Adam has at first = 11 u
(b)
Change in the number of stickers that Adam has
= 20% x 11 u
=
20100 x 11 u
= 0.2 x 11 u
= 2.2 u
(c)
Number of stickers that Adam has in the end
= 11 u - 2.2 u
= 8.8 u
(d)
Fraction of the number of stickers that Bryan has at first
= 1 -
1120 =
920 There is no change in the number of stickers that Bryan has.
Number of stickers that Bryan has in the end = 9 u
Answer(s): (a) 11; (b) 2.2; (c) 8.8; (d) 9