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balandron [24]
3 years ago
7

How can systems of linear equations with two variables be solved using algebraic methods?

Mathematics
1 answer:
erik [133]3 years ago
8 0

Answer: The systems are solved by solving for one variable in one of the equations, then substituting that equation into the second equation. Solve for a in the second equation, then substitute the second equation into the first. The Elimination Method: Both equations are in standard form:            Ax + By = C.

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A builder needs to tile a 7 foot by 8 foot room with one-foot square tiles. how many tiles will she need?
Diano4ka-milaya [45]
I believe that she will need 56 square tiles. You get this by doing 7 times 8 which is 56. Then, since each tile is a one-foot square tile, you would need 56 tiles to cover the whole floor. 
6 0
3 years ago
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Vesna [10]

Answer:

C

Step-by-step explanation:

One side is 60 so the other side is 60

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60=(4(20)-20)

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8 0
2 years ago
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Step-by-step explanation:

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2 years ago
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Answer:

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Step-by-step explanation:

Given

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6 0
3 years ago
Which expression is equivalent to?...
stiks02 [169]

Answer:

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Step-by-step explanation:

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