The following table shows the number of medals won in the 2008 Olympics for swimming by the top five countries.Country
Number of Medals
USA
31
Australia
20
Great Britain
6
China
6
France
6
How many degrees will the Australia section be in a circle graph of this data?
52
20°
29°
104

Answers

Answer 1

Answer:

Answer:

I believe it is 104 degrees.

Step by Step: First, You add all the medals for all the countries, giving you 69. Then, you make Australia's medals a fraction of 69, so 20/69. After this, since a circle has 360 degrees, you make x/360 and cross multiply. This takes you to 69x=7200. Now divide 7200 by 69, which gets you 104.347, or 104 degrees.

Answer 2

Answer:

Answer:

104 deg

Step-by-step explanation:

Total number of medals: 31 + 20 + 6 +6 + 6 = 69

Number of Australian medals: 20

Fraction of total medals won by Australia: 20/69

A circle has a total of 360 deg.

Since Australia has 20/69 of the medals, it will have 20/69 of 360 degrees in the circle graph.

20/69 * 360 = 104.3

Answer: 104 deg

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A teacher is having three students take care of 28 goldfish during the summer. He gave some of them to Alaina. Then he gave twice as many Miguel. He gave twice as many to Kira as he gave to Miguel. How many fish did each student get?

Answers

Answer:

Alaina got 4, Miguel got 2(4) = 8 while Kira got 2(8) = 16

Step-by-step explanation:

Let the number he gave to Alaina be x. Now, we know he gave twice as many to Miguel. Amount received by Miguel is 2x.

He gave Kira 2 times what he gave Miguel, that is 2x * 2 = 4x

Addition of all these equals 28. We now get x

4x + 2x + x = 28

7x = 28

X = 28/7

x = 4

Alaina got 4, Miguel got 2(4) = 8 while Kira got 2(8) = 16

-36-(-40)
Please I need this ASAP

Answers

Answer:

Step-by-step explanation:

-36 - (-40) = -36 + 40
-36 + 40 = 4

I hope this helps!

Answer:

Step-by-step explanation:

because -36+ 40 =4 you take the subtraction and give it to the 40

Which statement is true for the equation 2x - 2x - 7 = -7?a. It has infinitely many solutions
b. It has two solutions
c. It has one solution
d. it has no solution

Answers

Answer: Option 'a' is correct.

Step-by-step explanation:

Since we have given that

2x-2x-7=-7

We need to solve it first as follows:

$2x-2x-7=-7\n\n2x-2x=-7+7\n\n0=0$

Since L.H.S. = R.H.S.

So, it satisfies the equation for all x.

So, there will be infinitely many solutions.

Hence, Option 'a' is correct.

$2x-2x-7=-7 \n (2-2)x-7=-7 \n 0x-7=-7 \n-7=-7 \n true$

The equation is satisfied for every x, so it has infinitely many solutions.
The answer is A.

A camera on a 5-foot-high tripod is placed in front of a 6-foot-high picture that is mounted 3 feet above the floor.a) express angle theta as a function of the distance x from the camera to the wall.
b) the photographer wants to use a particular lens, for which theta = 36 (pi/5 radians). How far should she place the camera from the wall to be sure the entire picture will show in the photograph?

Answers

This question is a fascinating example. I mean a fascinating example of
one that you want to jump right in and start cranking out answers, but as
soon as you do that, you run into lots of sneaky things that you'll need
in order to find answers but they're not given in the question.

a). We think we kind of know what the angle 'theta' is, but we're not sure.
It could be the elevation angle of the camera's optical axis, and if so, then
it depends on where the camera is actually aimed. Is it the center of the
picture ? Is it one corner ? Is it a point somewhere along the top of the
frame ? We don't know.

a). On the other hand, 'theta' could be the angle subtended by the whole
subject at the camera's focal plane, or at the front surface of its objective
lens. We don't know.

b). Here in b)., it sounds like maybe there's some connection between
'theta' and what kind of lens she uses, so it could be the angle of the
camera's field of view. But then, how much of the picture you can capture
also depends on the dimensions of the film frame or the CCD. We know
that one radian of field of view is one focal length on the film. But we don't
know the size of the 'film', so maybe the image of the subject can completely
fit on it, and maybe it can't. We don't know.

But, as I said. It sure is fascinating.

Evaluate each expression for the given values of the variables. SHOW ALL WORK. -5(x+2y)+15(x+2y)

x=7

y=-7