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pochemuha
3 years ago
9

Find the missing numerator in each of the following fractiions? A. 5/6= /12. B. 2/4= /36. C. 2/5=/20. D. 4/25=/100

Mathematics
1 answer:
lesantik [10]3 years ago
5 0

<u>Answer:</u>

A. 10

B. 18

C. 8

D. 16

<u>Step-by-step explanation:</u>

We are given a number of incomplete fractions and we are to find the missing numerator in each one of these.

To find the missing numerator or denominator, we multiply the numerator and the denominator by the same number to get an equivalent fraction.

A. \frac{5}{6} =\frac{10}{12}

Here the denominator is multiplied by 2 so the denominator will also be multiplied by 2 to get 10.

B. \frac{2}{4} =\frac{18}{36}

Numerator is multiplied by 9.

C. \frac{2}{5} =\frac{8}{20}

Numerator is multiplied by 4.

D. \frac{4}{25} =\frac{16}{100}

Numerator is multiplied by 4.

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gavmur [86]
So just convert to a common form
I will convert to decimal since 2 of them are already decimals

to conver 1 and 3/7 to decimal, just divide 3 by 7 using a calculator
1 3/7=1.43...

so 1.38, 1.43, 1.40
the greates is .43 then .40 then .38 so the order is
least to greatest
1.38, 1.4, 1 3/7 or D
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How do you solve System of Equations?
Katarina [22]

The addition method of solving systems of equations is also called the method of elimination. This method is similar to the method you probably learned for solving simple equations.

If you had the equation "<span>x + 6 = 11</span>", you would write "–6" under either side of the equation, and then you'd "add down" to get "<span>x = 5</span>" as the solution.

<span>x + 6 = 11
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x       =   5</span>

You'll do something similar with the addition method.

<span>Solve the following system using addition.<span>2x + y<span> = 9
3</span>x – y = 16</span>Note that, if I add down, the y's will cancel out. So I'll draw an "equals" bar under the system, and add down:2<span>x + y = 9
3x – y<span> = 16
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It doesn't matter which equation you use for the backsolving; you'll get the same answer either way. If I'd used the second equation, I'd have gotten:

<span>3(5) – y = 16
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...which is the same result as before.

<span>Solve the following system using addition.<span>x – 2y<span> = –9
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A very common temptation is to write the solution in the form "(first number I found, second number I found)". Sometimes, though, as in this case, you find the y-value first and then the x-value second, and of course in points the x-value comes first. So just be careful to write the coordinates for your solutions correctly. Copyright © Elizabeth Stapel 2003-2011 All Rights Reserved

<span>Solve the following system using addition.<span>2x –   y<span> =     9
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Usually when you are solving "by addition", you will need to create the cancellation. Warning: The most common mistake is to forget to multiply all the way through the equation, multiplying on both sides of the "equals" sign. Be careful of this.

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(Your text may format the answer as "<span>(s, 4s – 2)</span><span>", or something like that.)</span>


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