PSLEAt first, Leah had a total of 94 yellow and white balloons. 16 white balloons burst. She then increased the number of yellow balloons by 90%. After that, Leah had a total of 132 balloons. How many white balloons did she have at first?
|
Yellow |
White |
Total |
Before |
10 u |
|
94 |
Change |
+ 9 u |
- 16 |
+ 38 |
After |
19 u |
|
132 |
90100 =
910Increase in the number of balloons
= 132 - 94
= 38
9 u = 38 + 16
9 u = 54
1 u = 54 ÷ 9 = 6
Number of yellow balloons at first
= 10 u
= 10 x 6
= 60
Number of white balloons at first
= 94 - 60
= 34
Answer(s): 34