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Jlenok [28]
3 years ago
5

a rectangular corn hole area at the recreation center has a width of 5 feet and a length of 10 feet. if a uniform amount is adde

d to each side, the area is increased to 84 square feet. what is the amount added to each side
Mathematics
2 answers:
rusak2 [61]3 years ago
5 0

Answer:

the answer is add 2 feet on each side!

Step-by-step explanation:


harkovskaia [24]3 years ago
3 0
Let
x-------------> amount added <span>to each side
</span>A-------------> area increased----------> 84 ft²

we know that
A=(10+x)*(5+x)=84-----------> 10*5+10*x+5*x+x²
50+15x+x²=84----------> x²+15x-34=0
<span>solving the second order equation
</span>x1=-17
x2=2

 the answer is x=2 ft
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