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love history [14]
3 years ago
8

What percent of 200 is 28

Mathematics
2 answers:
Dafna1 [17]3 years ago
7 0
1. We assume, that the number 200 is 100% - because it's the output value of the task. 
2. We assume, that x is the value we are looking for. 
3. If 200 is 100%, so we can write it down as 200=100%. 
4. We know, that x is 28% of the output value, so we can write it down as x=28%. 
5. Now we have two simple equations:
1) 200=100%
2) x=28%
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:
200/x=100%/28%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 28% of 200


<span>x=56
</span>
so <span>now we have: </span>
<span>28% of 200=56</span>
vichka [17]3 years ago
4 0
It is 14% because you just need to take my word for it

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Please help
poizon [28]

Answer:

D

Step-by-step explanation:

4 people = 15 days

1 people = 15/4 = 3.75

so, 6 people = 3.75 × 6

= 22.5

7 0
3 years ago
Ben is decorating his home with vases of flowers. He bought glass vases that cost $22 each and ceramic vases that cost $14 each.
Evgen [1.6K]

Answer:

Step-by-step explanation:

x + y = 10

22x + 14y = 172

-22x - 22y = -220

22x + 14y = 172

-8y = - 48

y = 6 ceramic vases

x + 6 = 10

x = 4 glass vases

6 0
3 years ago
Read 2 more answers
Which of the following pairs of base and height produces the greatest area? All measurements are in centimeters.
egoroff_w [7]
B because 20 and 0.8 are the biggest
4 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%7B7%7D%5E%7B2x%20%2B%203%7D%20%20%3D%201" id="TexFormula1" title=" {7}^{2x + 3} = 1" alt=
Lelechka [254]

Answer:

x = -3/2

Step-by-step explanation:

7⁰ = 1 (anything to the power of 0 equals 1)

7²ˣ ⁺ ³ = 7⁰

Since the bases are the same, you 'forget' about the bases and then you solve for x.

2x + 3 = 0

2x = -3

x = -3/2

7 0
3 years ago
PLS PLS HELP WILL GIVE 50 POINTS TO BRAINLIEST How do you find the radius of a circle with the equation: 03.5 (x+2.2)^2 + 3.5 (y
alexgriva [62]

Answer: r=√6 or r≈2.45.

Step-by-step explanation:

To find the radius, you first need to know the equation of a circle.

Equation of a circle: (x-h)^2+(y-k)^2=r^2

Now that we know the equation of the circle, we can use it to find the radius of the given equation.

3.5(x+2.2)²+3.5(y-11.1)²-21=0

So far the equation looks pretty similar with the exception of the bolded areas. To get rid of them, we need to use our algebraic properties.

3.5(x+2.2)²+3.5(y-11.1)²-21=0                    [add both sides by 21]

3.5(x+2.2)²+3.5(y-11.1)²=21                       [factor out 3.5]

3.5((x+2.2)²+(y-11.1)²)=21                           [divide both sides by 3.5]

(x+2.2)²+(y-11.1)²=6

Now, our equation is the same as the one posted above. You may think that 6 is our radius, but if you look closely, the equation is equal to r². Therefore, 6 is actually r², not r.

r²=6                                                             [square root both sides]

r=√6

Finally, we have the final answer, r=√6 or r≈2.45.

7 0
3 years ago
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