Fifty students were eating lunch in the school cafeteria. The ratio of boys to girls was 25:25. Mrs. White asked Kym to explain
2 answers:
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Answer:
Approximately 7.3%.
Step-by-step explanation:
What is percentage increase?
.
For this question:
,
, and
needs to be found.
Let .
.
Assume that . Multiply both sides of the equation by
:
.
Add to both sides of the equation:
.
.
In other words, the initial percentage is approximately 7.3%.