Fill in the blanks.
Adam has some marbles.
Adam gives some marbles away.
The number of marbles now is a decrease of 70% compared to what Adam has at first.
- Number of marbles that Adam has at first = _____ u
- Number of marbles that Adam gives away = _____ u
- Number of marbles that Adam has in the end = _____ u
|
Adam (Units) |
Adam (%) |
Before |
10 u |
100% |
Change |
- 7 u |
- 70% |
After |
3 u |
30% |
(a)
Change percentage into units.
70% =
70100 =
710 Number of marbles that Adam has at first = 10 u
(b)
Number of marbles that Adam gives away = 7 u
(c)
Number of marbles that Adam has in the end
= 10 u - 7 u
= 3 u
Answer(s): (a) 10; (b) 7; (c) 3