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bogdanovich [222]
3 years ago
5

There are 75 people in a room. Of these people, 2/5 are from Germany. If 4/9 of the people who are not from Germany are from Fra

nce, how many of the people in the room are from neither Germany nor France
Mathematics
1 answer:
Alex Ar [27]3 years ago
7 0

Answer:

25 people are not from Germany or France.

Step-by-step explanation:

1. You first want find out what is the number of people from Germany.

So you would find...

2/5 of 75

or

2/5*75= 30 people from Germany

2. Next you want to to find out the number of people from France.

So you would do the following...

75-30=45 (Subtract the number of people from Germany from 75 so you can get the total number of people from France and other countries)

4/9 of 45 to find the number of people from France.

4/9 *45= 20

3. Lastly you need to find the people who are from neither of the countries listed above.

Add 30+20= 50

Then subtract that number from 75.

75-50= 25 people who are from neither France or Germany.

Voila! This is your answer. Hope this helps! :)

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ipn [44]

Answer:

B 137.32 cm³

Step-by-step explanation:

The original volume is

V = pi r^2 h

V = pi (3)^2 ( 12)

V =108 pi cm^2 = 339.12

the diameter increases by 1.12  6*1.12 = 6.72

r = 6.72 /2 =3.36

The height will increase by 1.12 so 12*1.12

V = pi ( 3.36)^2 ( 13.44)=476.4391834

The difference is

476.4391834 - 339.12 = 137.3191834

To the nearest hundredth

137.32

5 0
3 years ago
melanie spent 4 hours babysitting, charges $16 and then charge per hour. the total she earns can be represented like this $4x+$1
timurjin [86]
$6.50 per hour of babysitting
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3 years ago
6-94.
Gnom [1K]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
Write the equation in standard form of a circle with center (-7,2), tangent to the y-axis.
Vesna [10]

Answer:

(x+7)^2+(y-2)^2=7^2

Step-by-step explanation:

Tangent to y-axis means that the side of the circle TOUCHES the y axis.

Since the center is at (-7,2) and it touches the y axis, we can figure out the radius. It goes from (-7,2) to y-axis. Horizontally, the center is 7 units left of y-axis, so that is the radius -----  7 units

The standard form of a circle is:

(x-h)^2+(y-k)^2=r^2

Where

(h,k) is the center

r is the radius

Putting the information into the form, we have:

(x-h)^2+(y-k)^2=r^2\\(x-(-7))^2+(y-(2))^2=7^2\\(x+7)^2+(y-2)^2=7^2

THis is the standard form.

7 0
3 years ago
The area of a circle is 25 in. What is it’s radius?
Lesechka [4]
\bf \textit{area of a circle}\\\\
A=\pi r^2~ 
\begin{cases}
r=radius\\
-----\\
A=25
\end{cases}\implies 25=\pi r^2\implies \cfrac{25}{\pi }=r^2
\implies 
\sqrt{\cfrac{25}{\pi }}=r
5 0
3 years ago
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