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3 years ago

Solve using elimination-2x+4y=-16-2x-y=19

Mathematics

2 answers:

allochka39001 [22]3 years ago

6 0

Answer:

x = -6 y = -7

Step-by-step explanation:

multiply the 2nd equation by -1 to get 2x + y = -19

Now -2x + 4y = -16

5y = -35

y = -7

Substitute y = -7 into the second equation to get -2x + 7 = 19

-2x = 12

x = -6

Check: Substitute values into the 1st equation

-2(-6) +4(-7) = 12 - 28 = -16

So we have the correct values for x and y

sergejj [24]3 years ago

3 0

Elimination is getting rid of one of the variables the answer is (-6,-7)

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Katena32 [7]

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Answer:

60%

Step-by-step explanation:

Assuming your problem statement is saying that 48 of 80 coffees served were regular, that percentage is ...

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3 years ago

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disa [49]

Answer:

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Step-by-step explanation:

De la pregunta anterior:

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3 years ago

A landscaper has 10 2/5 cubic yards of peat moss in a truck. If he unloads 2 2/3 cubic yards at the first site and 2 1/4 cubic y

Vikentia [17]

Step-by-step explanation:

The problem bothers on fractions, here we are being presented with mixed fractions.

what we are going to do bascially is to subtract the sum of all the uloaded

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therefore

$10\frac{2}{5}-(2\frac{2}{3}+ 2\frac{1}{4})$

we then have to convert the mixed fraction to further simplify the problem we have

$\frac{52}{5}-(\frac{8}{3}+ \frac{9}{4})$

we then solve the fraction to the right of the negative symbol first

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3 years ago

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Elena L [17]

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3 0

4 years ago

What is the rate of change of the linear function represented by the table? StartFraction one Over three EndFraction StartFracti

Lynna [10]

The rate of change of the linear function represented by the table is 3

<h3>Rate of change of a function</h3>

The rate of change of a function is also known as the slope of a function. The equation for calculating the slope is expressed as:

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Substitute

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Hence the rate of change of the linear function represented by the table is 3

Learn more on rate of change here: brainly.com/question/25184007

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5 0

2 years ago

Solve using elimination-2x+4y=-16-2x-y=19​

Solve using elimination-2x+4y=-16-2x-y=19