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Korvikt [17]
3 years ago
5

The largest fish ever caught in Lake A weighed 650 pounds. This is 208.2 pounds less than seven times the weight of the largest

fish ever caught in Lake B. Find the weight of the largest fish caught in Lake B nts​
Mathematics
1 answer:
Anika [276]3 years ago
6 0

Answer:

122.6 pounds

Step-by-step explanation:

Let's call the weight of the largest fish from lake A 'x', and the weight of the largest fish from lake B 'y'.

If x is 208.2 pounds less than seven times y, we have that:

x = 7y - 208.2

We know that x is equal 650 pounds, so we can find y:

650 = 7y - 208.2

7y = 650 + 208.2

7y = 858.2

y = 122.6\ pounds

So the weight of the largest fish caught in Lake B is 122.6 pounds

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Answer:

I'm not sure what your asking, but, no, all rectangles are parallelograms.

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It is true that every rectangle is a parallelogram, but it is not true that every parallelogram is not a rectangle. For instance, take a square. It's a parallelogram — it is a quadrilateral with two pairs of parallel faces. But it is also a rectangle — it is a quadrilateral with four right angles.

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3 years ago
Solve the following system of equations. {y=−2x−92x+3y=−3 Write your answer as an ordered pair in the form (x,y).
Over [174]

Answer:

  (x, y) = (-6, 3)

Step-by-step explanation:

Maybe you want to solve ...

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Use the first equation to substitute for y in the second:

  2x +3(-2x -9) = -3

  2x -6x -27 = -3

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  x = -6 . . . . . . . . . . . divide by -4

  y = -2(-6) -9 = 12 -9 = 3

The solution is (x, y) = (-6, 3).

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At which vertex is the objective function C=3x-4y minimized
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Options

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Answer:

(B) (-2,20)

Step-by-step explanation:

Given the objective function, C=3x-4y

The vertex at which C is minimized will be the point (x,y) at which the expression gives the lowest value.

<u>Option A </u>

At (9,0), x=9, y=0

C=3(9)-4(0)=27-0

C=27

<u>Option B </u>

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<u>Option C</u>

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C=3(-5)-4(2)=-15-8

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<u>Option D </u>

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The lowest value of C is -86. This occurs at the vertex (-2,20).

Therefore, the objective function C=3x-4y is minimized at (-2,20).

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