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xxMikexx [17]
3 years ago
12

4/5+ 1/3 how much is it

Mathematics
1 answer:
Andreas93 [3]3 years ago
4 0
4/5 = 12/15
1/3 = 5/15
17/15 = 1 2/15
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8% of a number is 20
Gnoma [55]
To find what the number is, we need to set up proportional fractions.
Currently, we have 8% of a number is 20.
To set up our fractions, put 100% under 8% as a fraction first.

It should look like this: 8/100 (hint: per-cent means per-hundred).

Now, we have 20 out of a number, x. This is because we are claiming that 20 is 8% of a number (if we just reword the question without changing the concept).
It should look like this: 20/x.

Our proportional fractions are:
20/x = 8/100.

To solve for this, we need to cross-multiply the denominator of 8/100 (bottom number, 100) with the numerator of 20/x (top number, 20).

This product equation should look like this:
20 x 100 (when simplified, we get 2000).

Now, we need to cross multiply the numerator of 8/100 (top number, 8) with the denominator of 20/x (bottom number, x).

This product equation should look like this:
8x.

Now that we've cross-multiplied, set our two products as an equation.

8x = 2000.

To solve for x, divide both sides by 8 (remember, what you do to one side of an equation, you must do it to the other).

8x / 8 = x
2000 / 8 = 250.

x = 250

Your final answer is:

8% of 250 is 20.

I hope this helps!
3 0
3 years ago
Read 2 more answers
Estimate the solution of the equation x - 8.1=5.3 to the nearest whole number
lord [1]
2 or 3 I would say... hope that helps : ) 









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3 years ago
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Questions 2,4,5,6,7 and 8 I need help on. I’ll give brainliest to whoever can answer correctly
lions [1.4K]

Answer:

7.

x=16

arc DE=167

arc EF=13

arc DFG=347

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2 years ago
Please help <br><br>must show work<br><br><br>there are 5 that I'm stuck on​
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you cannot show too much "work"

basically, you remove what is common to all of the factors, and then put brackets, as it will be multiplied back in, remember that when you multiply exponents with the same base, its same as adding them, so subtract to remove...

you can seperate two of the variables , then factor, then subtract the last one from those two, because it cannot be factored out , as in part2 #2

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3 years ago
What is the length of AB?
Stella [2.4K]

Answer:

Answer will be C. 6

hope this is helpful ^_^

please mark me as brainliest if you want.

thank you

6 0
3 years ago
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