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3 years ago

The sum of 2 numbers is 18 and there difference is 6

Mathematics

1 answer:

uranmaximum [27]3 years ago

7 0

Answer:

The two numbers are 6 and 12.

Step-by-step explanation:

So, let's start off, with x+y = 18 and x-y = 6.

Algebraically, we can add the above two equation sets, and we find out that 2x = 24, so x = 12. And then, it says the other number must be 6.

You start with a number that when added to the second number you will get 18 and when you subtract the second number from the first you will get 6. The difference between the above two results is 12.

So that difference of 12 is twice the second number; that means the second number is 6. And then using either of the given pieces of information, you can find that the first number is 12.

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In conclusion:

6 + 12 = 18

12 - 18 = 6

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The percentage change of a ratio of two variables is approximately the percentage change in the numerator _____ the percentage c

olchik [2.2K]

Answer:

"The percentage change of a ratio of two variables is approximately the percentage change in the numerator minus the percentage change in the denominator."

Step-by-step explanation:

The percent change in a number is determined by dividing the difference between the new number and original number by the original number and multiplying the result by 100.

Suppose the original ratio of two numbers is: $\frac{25}{100}$ .

And the new ratio is: $\frac{75}{100}$

The percent change is:

$Change\%=\frac{75-25}{100}\times100=\frac{50}{100}\times100=50\%$

Thus, the complete statement is:

"The percentage change of a ratio of two variables is approximately the percentage change in the numerator minus the percentage change in the denominator."

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A triangle is placed in a semicircle with a radius of 9 cm

julsineya [31]

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3 years ago

1) 26 = 8 + v 2) 3 + p = 8

aleksklad [387]

Answer:

268+v2)3+p=8 =p=−3v2−796

Step-by-step explanation:

Let's solve for p.

(268+v2)(3)+p=8

Step 1: Add -804 to both sides.

3v2+p+804+−804=8+−804

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Step 2: Add -3v^2 to both sides.

3v2+p+−3v2=−796+−3v2

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Hope this helps.

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3 years ago

Expression for six minus b

Zanzabum

Answer:

6-b

Step-by-step explanation:

I hope this helps, and have a great day! :D

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