PSLEAt first, Leah had a total of 92 yellow and green balloons. 20 green balloons burst. She then increased the number of yellow balloons by 90%. After that, Leah had a total of 126 balloons. How many green balloons did she have at first?
|
Yellow |
Green |
Total |
Before |
10 u |
|
92 |
Change |
+ 9 u |
- 20 |
+ 34 |
After |
19 u |
|
126 |
90100 =
910Increase in the number of balloons
= 126 - 92
= 34
9 u = 34 + 20
9 u = 54
1 u = 54 ÷ 9 = 6
Number of yellow balloons at first
= 10 u
= 10 x 6
= 60
Number of green balloons at first
= 92 - 60
= 32
Answer(s): 32