PSLEAt first, Leah had a total of 59 silver and pink balloons. 19 pink balloons burst. She then increased the number of silver balloons by 80%. After that, Leah had a total of 56 balloons. How many pink balloons did she have at first?
|
Silver |
Pink |
Total |
Before |
5 u |
|
59 |
Change |
+ 4 u |
- 19 |
- 3 |
After |
9 u |
|
56 |
80100 =
45Decrease in the number of balloons
= 59 - 56
= 3
4 u = 19 - 3
4 u = 16
1 u = 16 ÷ 4 = 4
Number of silver balloons at first
= 5 u
= 5 x 4
= 20
Number of pink balloons at first
= 59 - 20
= 39
Answer(s): 39