shelbyp2003
27.09.2019 •
Mathematics
Write a function for the area a of a square given the perimeter p of the square.
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Ответ:
a=p/4 x itself
p/4 is one side, since it is a square you would multiply that number by itself
Ответ:
12 starfish
Step-by-step explanation:
Create a system of equations where x is the number of starfish he has and y is the number of spiders he has:
x + y = 19
5x + 8y = 116
Solve by elimination by multiplying the top equation by -8:
-8x - 8y = -152
5x + 8y = 116
Add these together and solve for x:
-3x = -36
x = 12
So, he has 12 starfish.