Fill in the blanks in decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 65% of the total.
If Bryan gives away some stickers,
his number of stickers decreases by 40%.
- 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 |
7 u |
13 u |
Change |
|
- 5.2 u |
After |
7 u |
7.8 u |
(a)
Change percentage into units.
65% =
65100 =
1320Fraction of the stickers that Bryan has at first =
1320 Number of stickers that Bryan has at first = 13 u
(b)
Change in the number of stickers that Bryan has
= 40% x 13 u
=
40100 x 13 u
= 0.4 x 13 u
= 5.2 u
(c)
Number of stickers that Bryan has in the end
= 13 u - 5.2 u
= 7.8 u
(d)
Fraction of the number of stickers that Adam has at first
= 1 -
1320 =
720 There is no change in the number of stickers that Adam has.
Number of stickers that Adam has in the end = 7 u
Answer(s): (a) 13; (b) 5.2; (c) 7.8; (d) 7