3 years ago

Is any type of form of solving systems more useful at certain times?

1 answer:

8 0

Yes because if you have one equation for example is y=3x and the other is 3y=9 then substitution would be more useful. If you have x+2y=3 and -x+y=5 then elimination would be more useful.

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WhAt is the answer to 8.3x=41.5

maks197457 [2]

The "answer" is the number that 'x' must be
in order for that equation to be true.

To find it, just divide each side of the equation by 8.3 .

Then it'll say x = 5 .

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4 years ago

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3.1/3÷2.3/5<br>I Mark brainlies

disa [49]

Answer:

1.11/39

Step-by-step explanation:

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3 years ago

Please find the value of x :)

Aleks04 [339]

Answer:

10°

Step-by-step explanation:

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the SAT was recently given at mcdowell high school. joe scored a 288 on a math section which is 2 standard deviations below the

vichka [17]

Let $\mu$ be the mean and $\sigma$ the standard deviation.

Joe's score tells you that $\dfrac{288-\mu}\sigma=-2$ , while Jon's score says $\dfrac{633-\mu}\sigma=1$ . Solve this to get $\mu=518$ and $\sigma=115$ .

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3 years ago

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ziro4ka [17]

Answer:

I don’t really understand but here’s the table;

Step-by-step explanation:

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