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madam [21]
1 year ago
13

Solve the following system of equations by substitution 3 x + 0.5 y = 11 x + 2 y = 0

Mathematics
1 answer:
SVEN [57.7K]1 year ago
6 0

The solution to the system of equations using substitution is given by:

x = 4 and y = 2.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

For this problem, the equations are given by:

  • 3x + 0.5y = 11.
  • x + 2y = 0.

From the second equation, we have that:

x = -2y.

Replacing in the first equation, we have that:

3(-2y) + 0.5y = 11

-5.5y = 11.

5.5y = -11

y = -11/5.5

y = -2.

Then the solution for x is:

x = -2y = -2(-2) = 4.

The solution to the system of equations using substitution is given by:

x = 4 and y = 2.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

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amm1812

Answer:

m∠C=30°

Step-by-step explanation:

we know that

<u>Vertical Angles</u> are the angles opposite each other when two lines cross. They are always equal

so

m∠C=m∠D

substitute the given values

(x+5)\°=(-2x+80)\°

Solve for x

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3 years ago
Which expressions are equivalent to 2^−4·2^2?
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Step-by-step explanation:

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5 0
2 years ago
A candy store called "Sugar" built a giant sugar cube out of wood to hang above the entrance to their store. It took 545454 feet
DedPeter [7]

Answer:

<em>The volume inside the giant sugar cube is 27 cubic feet.</em>

Step-by-step explanation:

It took 54 feet² of material to build the giant sugar cube. That means, the total surface area of the cube is 54 feet²

<u>Formula for surface area of a cube</u> is:  S= 6a^2 , where a is the length of each edge of the cube.

So, we will get.........

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Now, <u>the volume of the cube will be</u>:  V= a^3= (3)^3 = 27 feet³

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QveST [7]

Answer:

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Step-by-step explanation:

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Now,

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5 0
3 years ago
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