For both of the contests, the variable is the number of competitors which we can set as x.
Consequently, the equation should be 5.50x+34.60=4.25x+64.60
5.50x=4.25x+30
1.25x=30
x=24
The fee of the contests is the same when there are 24 competitors
Answer:
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Area is proportional to the square of the dimensions.
Divide the dimensions by 3, and you divide the area by 3-squared = 9.
Number 7 you divide 6.48 by 4
