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3 years ago

Which ordered pair in the form (x, y) is a solution of this equation? (x 3)y = 14 (11, 1) (7, 2) (5, 2) (3, 2)

1 answer:

3 0

You have to replace x and y by each pair in the equation and find the answer 14.
IF you replace the pair (11,1) you will get (11+3)*1=14
solve this and you get 14=14 so ordered pair is (11,1)

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Answer:

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Step-by-step explanation:

The picture of the question in the attached figure

step 1

Find the volume of the silo

The volume of the silo is equal to the volume of a cylinder plus the volume of a cone

$V=\pi r^{2}h_1+\frac{1}{3}\pi r^{2}h_2$

we have

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$r=16/2=8\ ft$ ---> the radius is half the diameter

$h_1=16\ ft$

$h_2=12\ ft$

substitute

$V=(3.14)(8)^{2}(16)+\frac{1}{3}(3.14)(8)^{2}(12)$

$V=3,215.36+803.84=4,019.2\ ft^3$

Remember that

The silo is approximately 85% full

The volume of grain in the silo is

$0.85(4,019.2)=3,416.32\ ft^3$

step 2

Find the number of bags of grain

Divide the volume of grain in the silo by the volume of one sack

$3,416.32/2=1,708\ bags$

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