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Rasek [7]
3 years ago
5

Determine the solution to the following system of equations: 2x+4y=-12 x+2y=-2

Mathematics
2 answers:
slavikrds [6]3 years ago
8 0

Answer: The answer is no solution.


Step-by-step explanation:

First you want to isolate x.

  x=-2(y+3)

Then you substitute.

  [-2(y+3)+2y=-2]

Then you refine.

  -4=0

As you can see -4 isn't equal to 0, therefore this system is false. Which is where we get the answer no solution.  


jolli1 [7]3 years ago
4 0

Answer:

undefined/no solution

Step-by-step explanation:

you use elimination to solve. So multiply 2x+4y=-12 by 1 and x+2y=-2 by 2. then you subtract 2x+4y=-12 by 2x+4y=-4 and get 0y=-8. Anything divided by 0 is undefined/no solution because you can't divide anything by 0.

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the price of a new pair of sneakers is $79.95. if sales tax is 7.5%, then approximately, how much tax will be paid on sneakers?
Firlakuza [10]

Answer:

$6

Step-by-step explanation:

Find 7.5% of the sneaker price, by multiplying the price by 0.075:

79.95(0.075)

= 6

So, approximately, the tax will be $6

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3 years ago
Simplify -5 1/4 - (-7 1/2) please<br> also ignore my tabs pls
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Answer: 1/8

Step-by-step explanation:

1/2 x 1/4 = 1 x 1/2 x 4

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3 years ago
4. Sammy created a model of a frontier fort. He used a scale
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Answer:

18 ft. tall

Step-by-step explanation:

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3 years ago
The polygon angle sum theorem states that the sum of the measures of the interior angles of an n-gon is
mafiozo [28]

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D.

Step-by-step explanation:

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8 0
3 years ago
Maddie biked 8 3/4 miles today, and Chase bikes 3 1/2 miles. How many times the length of Chase’s bike ride was Maddie’s bike ri
borishaifa [10]

Answer: 2.5 times

Step-by-step explanation:

Given : The length of Chase’s bike ride= 8\dfrac{3}{4}\ miles

The length of Maddie’s bike ride=3\dfrac{1}{2}\ miles

In improper fraction : Length of Chase’s bike ride=\dfrac{4(8)+3}{4}\ miles

=\dfrac{35}{4}\ miles

Similarly , Length of Maddie’s bike ride= \dfrac{7}{2}\ miles

The number of times the length of Chase’s bike ride was Maddie’s bike ride= \dfrac{\text{ Length of Chase’s bike ride}}{\text{ Length of Maddie’s bike ride}}

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Hence, the length of Chase’s bike ride was 2.5 times Maddie’s bike ride.

8 0
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