SOLUTION: Twenty students in a class play football and the remaining 10 play tennis. How many must change from tennis to football so that the percentage of the class which plays football is
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-> SOLUTION: Twenty students in a class play football and the remaining 10 play tennis. How many must change from tennis to football so that the percentage of the class which plays football is
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Question 1011936: Twenty students in a class play football and the remaining 10 play tennis. How many must change from tennis to football so that the percentage of the class which plays football is approximately 83%? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! .
20 play football + 10 remaining = 30 total students
(0.83)(30)=24.9
.
For approximately 83% of 30 students to play football,
25 students must play football.
X=number of students who must change to football
.
20+X=25
X=5
ANSWER: Five students must change from tennis to football
for the percentage playing football to be approximately 83%.
