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natali 33 [55]
4 years ago
12

What is 8 percent of two hundred

Mathematics
2 answers:
marta [7]4 years ago
8 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 100% equals 200, so we can write it down as 100%=200. 
4. We know, that x% equals 8 of the output value, so we can write it down as x%=8. 
5. Now we have two simple equations:
1) 100%=200
2) x%=8
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%=200/8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 8 is what percent of 200

100%/x%=200/8
(100/x)*x=(200/8)*x       - we multiply both sides of the equation by x
100=25*x       - we divide both sides of the equation by (25) to get x
100/25=x 
4=x 
x=4

now we have: 
8 is 4% of 200


leva [86]4 years ago
5 0

Answer:

8% of 200 is 16

Step-by-step explanation:

There are different methods to solve this.

Method 1

8% of 100 is 8

then 8% of 200 (100+100) will be 16 (8+8)

Method 2

8% of 200

=200*8%

=200*8/100

=1600/100

=16

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Step-by-step explanation:

Emery is paid 15 dollars an hour and she worked 38 hours

15*38=570 dollars just from the hourly wage

the commission is 2.25% and her sales were 3,200 dollars

(3200*2.25)/100=72

total=570+72=642

3 0
3 years ago
I need to find the equal expression to -m(2m+2n)+3mn+2m². Help please?
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m(2m+2n)+3mn+2m^2\implies \stackrel{\textit{distributing}}{2m^2+2mn}+3mn+2m^2 \\\\\\ 2m^2+2m^2+2mn+3mn\implies \stackrel{\textit{adding like-terms}}{4m^2+5mn}

4 0
3 years ago
Factor the trinomial below.<br> x2 + 14x + 48
elixir [45]
IF IT EQUALS 0
1. find two number that multiplied to 48 and adds to 14, which are 6 and 8.

2. substitute the new numbers in with x to get x^2 + 6x + 8x + 48.

3. factor out the x and the 8 to get x(x+6)+8(x+6).

4. x = -6, x = -8

IF IT DOES NOT EQUAL 0
then (x+6)*(x+8) is your answer.
4 0
4 years ago
Match each expression to its equivalent standard form
pogonyaev
Move the first one to the bottom,then the second to the top ans you will know where to put the rest
8 0
4 years ago
Read 2 more answers
A spiral staircase turns as it rises 10 feet. The radius of the staircase is 3 feet. What is the number of feet in the length of
jenyasd209 [6]

The number of feet in the length of the handrail is 17.3 feet.

<h3>What is a Pythagorean Theorem?</h3>

Pythagorean theorem, is a geometric theorem that the total of a squares on the sides of a right triangle equals the square upon that hypotenuse (a side opposite its right angle)—or, using familiar algebraic notation, the sum of squared on the hypotenuse equals the square also on hypotenuse.

H² = B² + P²

A spiral would be a shape that wraps around and around with each curve being higher or lower than the one before it.

Now, according to the question;

The simplest way to understand this is to assume that we may "unfold" this spiral to form a rectangle.

Its bottom part of rectangle is simply an arc length of a 3 ft radius circle spun around 270°= (3/4) of a full revolution.

Thus,

= (3/4)× (2\pi) ×(3)  

=  (9/2)×\pi ft

=   4.5×\pi  ft

The height of the staircase will be the side of rectangle = 10ft.

And the rectangle's diagonal will correspond to the length of a railing.

To solve this, we can apply the Pythagorean Theorem.

Handrail length = √ [ (4.5 ×\pi)² + 10² ]  

Handrail length ≈  17.3 ft

Therefore, the the number of feet in the length of the handrail is 17.3 feet.

To know more about Pythagorean Theorem, here

brainly.com/question/343682

#SPJ4

The complete question is-

A spiral staircase turns 270° as it rises 10 feet. The radius of the staircase is 3 feet. What is the number of feet in the length of the handrail?

7 0
2 years ago
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