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Zepler [3.9K]
3 years ago
14

Simplify the following expression.

Mathematics
1 answer:
jeyben [28]3 years ago
7 0

Answer:

8x + 2y

Step-by-step explanation:

You need to use distributive property.

5(x + y)

5 · x = 5x

5 · y = 5y

3(x - y)

3 · x = 3x

3 · -y = -3y (don't forget the sign)

So,

5x + 5y + 3x - 3y

Arrange them,

5x + 3x + 5y - 3y

Simplify,

5x + 3x = 8x

5y - 3y = 2y

So,

8x + 2y

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Answer:

Answer to first question is:

You can convert all fractions to decimals. The decimal forms of rational numbers either end or repeat a pattern. If the fraction is a mixed number, change it to an improper fraction. Divide the numerator by the denominator. If the division doesn't come out evenly, round the decimal off.

Answer to second question is: 0.222222

Answer to third question is: Yes

Step-by-step explanation:

Well the way I think of it is:

3/9 as a fraction is 1/3... so 1 divided by 3 equals 0.333333 repeating. You can even write it as:

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0.3 with the fraction bar over it because it keeps repeating.

This goes for 2/9. All you have to do is do 2 divided by 9 and you get 0.222222 repeating. You can even write it as:

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0.2 with the fraction bar over it because it keeps repeating.

Hope this helps, have a good day. c;


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Step-by-step explanation:

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X = 6

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