Question 1
Lets <em>convert these to decimals</em> first:
2 1/2 = 2.5
1/4 = 0.25
Now <em>divide</em> 2.5 by 0.25 to find how many scoops Zack uses.
If you divide correctly, you get <em>10</em>.
Now <em>multiply</em> this by two becuase Zack has TWO bird feeders.
So Zach uses <em>20 scoops</em> to fill both bird feeders.
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Question 2
Let x be the variable for the scoops Zack needs for both bird feeders
x = 2
/
x 2
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Question 3
x = 2
/
x 2
2
divided by
= 10
x = 10 x2
10 multiplied by 2 is 20
So...
x = 20
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If point P is at the center of the circle and the length of P equals 12 and the question you are trying to ask is what is the length of the diameter it would be 24,
But if you are saying the the diameter is 12 and trying to find the length of P it would be 6
To find the dimensions you can just factor the equation...
x^2+4x-21
x^2-3x+7x-21
x(x-3)+7(x-3)
(x+7)(x-3) and this is equal to LW or WL
And note that x>3 for any possible solution.