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3 years ago

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:

Step-by-step explanation:

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

79.95(0.075)

= 6

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3 years ago

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Kruka [31]

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Step-by-step explanation:

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3 years ago

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alina1380 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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mafiozo [28]

Answer:

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= $\dfrac{\text{ Length of Chase’s bike ride}}{\text{ Length of Maddie’s bike ride}}$

$=\dfrac{\dfrac{35}{4}}{\dfrac{7}{2}}\\\\=\dfrac{5}{2}=2.5$

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

8 0

3 years ago