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iren [92.7K]
2 years ago
9

Help will mark brainiest

Mathematics
2 answers:
Ivanshal [37]2 years ago
6 0

So first Isolate the variable by dividing each side by factors that don't contain the variable.

y= 3x/2 + 3

Hope this helps!

Alex_Xolod [135]2 years ago
5 0

Here is the equation given:

-6x=12-4y

In the equation, you're looking for y. That means you need to move anything with the variable y to the other side.

In this equation, you have 12-4y. To move 12 to the other side, you will need to subtract 12 on both sides. This is because when a variable or integer is moved, the sign changes. The 12 was originally positive, but when moving it, it will become -12, which is why it was subtracted.

-6x-12=12-4y-12 \\-6x-12=-4y

Remember you're looking for y alone. y is currently -4y. To remove the -4 that is being multiplied by y, you will need to do the opposite of it, which is divide by -4. Divide both sides by -4:

\frac{-6x-12}{-4} =\frac{-4y}{-4}

When a negative number is multiplied by another negative number, the sign becomes positive. On the left side, you have -6x-12, which is being divided by -4. When you divide, \frac{-6x}{-4} becomes \frac{6}{4}.

\frac{-6x-12}{-4} =\frac{-4y}{-4}\\\frac{6}{4}x+3=y

\frac{6}{4} cans till be simplified. The greatest common factor of 6 and 4 is 2, so divide the fraction by 2.

\frac{6 \div 2}{4 \div 2} =\frac{3}{2}

That means \frac{3}{2}x+3=y

The answer you are looking is \bf \frac{3}{2}.

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2 years ago
If your current examination mean is 97.2 and you receive a 99 on the next examination, what effect will this have?
mr Goodwill [35]

If you have an average of 97.2 on your current exam and you get a 99 on your next exam, your average will increase.

  • Mean in mathematics is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the total number of values.

  • To find the average, sum all the values ​​in the set. Then divide the total by the number of values.

We have the current examination mean, xold = 97.2

Now, we receive,  x = 99 on the next examination, the new mean will be:

xnew = (xold + x)/N

xnew = (97.2+99)/2

xnew = 196.2/2

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The new average is 98.1

98.1 > 97.2

So if you score 99 on your next exam, your average will increase.

Learn more about mean here

brainly.com/question/1136789

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3 0
1 year ago
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Daniel has lunch at a restaurant and the cost of his meal is $49.00, because of the service, he wants to leave a 5% tip. what is
yuradex [85]
49*1.05= $51.45

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3 years ago
At a school dance, the ratio of girls to boys is 8:3. If there are 528 students at the dance, how many are boys and how many are
weqwewe [10]

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144 boys and 384 girls

Step-by-step explanation:

8 girls to every 3 boys. You can make an equation to solve this: 8x + 3x = 528. 528 = 11x. Then divide 528 by 11 to get 48. x=48. 8(48) = 384 girls. 3(48) = 144 boys.

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2 years ago
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