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Juliette [100K]
3 years ago
7

20 is what percent of 50? A. 30% B. 10% C. 250% D. 40%

Mathematics
2 answers:
Assoli18 [71]3 years ago
8 0
The answer would be D. 
maks197457 [2]3 years ago
8 0
We assume, that the number 50 is 100% - because it's the output value of the task. 
<span>We assume, that x is the value we are looking for. 
</span>If 100% equals 50, so we can write it down as 100%=50. 
<span>We know, that x% equals 20 of the output value, so we can write it down as x%=20. 
</span>Now we have two simple equations:
1) 100%=50
2) x%=20
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=50/20
Now we just have to solve the simple equation, and we will get the solution we are looking for.

100%/x%=50/20
<span>(100/x)*x=(50/20)*x </span>
<span>100=2.5*x      </span>
<span>100/2.5=x </span>
<span>40=x </span>
<span>x=40</span>
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Hatshy [7]

Answer:

430 + 16h

Step-by-step explanation:

They are staying for a week ($430)

They are renting both a kayak ($7 per hour) and paddle board ($9 per hour), without defining the amount of hours. Create a variable, for example H for hours.

To create the expression, take the $430, the $7 per hour and $9 per hour, or 430 + 16h.

5 0
3 years ago
5x^{4}-7x^{3}-5x^{2}+5x+1-0
den301095 [7]

Answer:

5x^4 -7x^3-5x^2+5x+1

Step-by-step explanation:

Hey!

You would just add all the numbers up, and by making sure that you combine all like terms. In this case it is just 1-0 = 1 and so the solution would be the same as your question but with a 1 and you would get rid of the -0.

Hope this helps!

7 0
2 years ago
What is the result of dividing 2x3 – 3x2 – 17x + 30 by x + 3
jekas [21]
2x^3 - 3x² - 17x + 30 | x + 3 
<span>________________________ </span>
2x^3 + 6x² _________| 2x² - 9x + 10 
<span>_____-9x² - 17x ____ | </span>
<span>_____-9x² - 27x ____ | </span>
<span>_________ 10x + 30 _| </span>
<span>_________ 10x + 30 _| </span>
<span>________ _____ __0 _| 
</span>
Ans = 2x² - 9x + 10

BRAINLIEST PLS!!!
7 0
3 years ago
In circle O, tangent MN and secant MPQ are drawn to the circle from exterior point M. If MP = 6 and PQ = 8 then which of the fol
deff fn [24]

Answer:

42

Step-by-step explanation:

3 0
3 years ago
One-third of a storeâs inventory is childrenâs clothing. Two-fifths of its inventory is womenâs clothing. What fraction of the t
Eva8 [605]

Answer:  C. 11/15

Step-by-step explanation:

Given : The fraction of stores inventory is children's clothing=\dfrac{1}{3}

The fraction of stores inventory is women's clothing=\dfrac{2}{5}

Since both events are independent.

Therefore, the fraction of the total inventory is children's or women's clothing =  (Fraction of stores inventory is children's clothing ) + (Fraction of stores inventory is women's clothing )

=\dfrac{1}{3}+\dfrac{2}{5}=\dfrac{5+2(3)}{15}

=\dfrac{11}{15}

∴ The fraction of the total inventory is children's or women's clothing =\dfrac{11}{15}

Hence, the correct answer is C. 11/15 .

6 0
3 years ago
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