PSLEAt first, Leah had a total of 96 purple and silver balloons. 16 silver balloons burst. She then increased the number of purple balloons by 90%. After that, Leah had a total of 134 balloons. How many silver balloons did she have at first?
|
Purple |
Silver |
Total |
Before |
10 u |
|
96 |
Change |
+ 9 u |
- 16 |
+ 38 |
After |
19 u |
|
134 |
90100 =
910Increase in the number of balloons
= 134 - 96
= 38
9 u = 38 + 16
9 u = 54
1 u = 54 ÷ 9 = 6
Number of purple balloons at first
= 10 u
= 10 x 6
= 60
Number of silver balloons at first
= 96 - 60
= 36
Answer(s): 36