Fill in the blanks in decimals.
2 boys, Bryan and Adam, share some stickers.
Adam has 70% of the total.
If Adam receives extra stickers,
his number of stickers increases by 90%.
- Number of stickers that Adam has at first = _____ u
- Change in the number of stickers that Adam has = _____ u
- Number of stickers that Adam has in the end = _____ u
- Number of stickers that Bryan has in the end = _____ u
|
Bryan |
Adam |
Before |
3 u |
7 u |
Change |
|
+ 6.3 u |
After |
3 u |
13.3 u |
(a)
Change percentage into units.
70% =
70100 =
710Fraction of the stickers that Adam has at first =
710 Number of stickers that Adam has at first = 7 u
(b)
Change in the number of stickers that Adam has
= 90% x 7 u
=
90100 x 7 u
= 0.9 x 7 u
= 6.3 u
(c)
Number of stickers that Adam has in the end
= 7 u + 6.3 u
= 13.3 u
(d)
Fraction of the number of stickers that Bryan has at first
= 1 -
710 =
310 There is no change in the number of stickers that Bryan has.
Number of stickers that Bryan has in the end = 3 u
Answer(s): (a) 7; (b) 6.3; (c) 13.3; (d) 3