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Over [174]
3 years ago
15

I’ll make brainlest. help asap pls

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
6 0

Answer:

(2, -1)

Step-by-step explanation:

We can add the first equation by the second

(4x + 6y = 2)+(-4x + 4y = -12)=

10y=-10

we divide both sides by 10 to get

y=-1

We plug -1 in the second equation to get:

-4x+4(-1)=-12

-4x-4=-12

-4x=-8

Now, we divide both sides by -4

x=2

Hope this helps!

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On percent error, if 48% is the actual and the error rate is 20%, what is the estimate?
alex41 [277]

The estimate is 57.6 %

<em><u>Solution:</u></em>

Given that, On percent error, 48% is the actual and the error rate is 20%

To find: Estimate

Percent error is the difference between a measured and known value, divided by the known value, multiplied by 100%

<em><u>The formula for percent error is given as:</u></em>

\text { percent error }=\frac{\text {estimated value}-\text {actual value}}{\text {actual value}} \times 100

Here given that,

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Estimate = ?

Let "x" be the estimate

Substituting the values we get,

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