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Anna71 [15]
3 years ago
9

Need help right now Not really but please

Mathematics
2 answers:
Dafna1 [17]3 years ago
6 0

Mean is when you take all the numbers and add them together and divide by the amount of numbers there

Example: Find the mean of :3,4,6,7

So you a 3+4+6+7=20 divide that by 4(because there you added 4 numbers) and that equals 5

Fudgin [204]3 years ago
6 0

Your first picture would be 148.8

For the second picture could you retake it. It says there are four bicycles and it looks like the table graph has more bikes and costs but I can't see it, so could you scroll it down, so I could see the graph please.

For the third picture it would be 15

You find the mean by adding up all the numbers and dividing your sum by all the amount of numbers they give you

For example, the third one.

It says find the mean of 2, 6, 8, 10, and 49

That means to add all those together, which is 75

Then, you would divide 75 by 5 because they give you 5 numbers

Those 5 numbers are 2, 6, 8, 10 and 49

75/5= 15

Hope this helps :)

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If y varies directly as x, and y is 48 when x is 6, which expression can be used to find the value of y when x is 2?
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y = ( 48 *2 ) / 6

Step-by-step explanation:

If y varies directly as x they are directly proportional, which means they relate to each other in the same way....

2 : y = 6: 48

what is y if x = 2?

The value of y can be found if you write it a two fracrions

2 : y = 6 : 48

2 / y = 6 / 48

cross multiply the fractions gives

6*y = 48 *2

divide left and right of the = sign by 6 gives the answer:

y = ( 48 *2 ) / 6

(if you solve it you get y = 12 but that was not the question).

Other method:

multiply left and right of the = sign by y

2 * y/y = y *6 / 48

6y / 48 = 2 * 1

multiply left and right of the = sign by 48

6y * 48/48 = ( 48 *2 )

6y = ( 48 *2 )

divide left and right of the = sign by 6

6/6* y = ( 48 *2 )/6

y = ( 48 *2 ) / 6

(if you solve it you get y = 12 but that was not the question).

4 0
3 years ago
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Answer:

8/17 and 9/17

Step-by-step explanation:

8:9

both add up to 17

so it can be 8/17 or 9 but it cannot be simplified unless if you want them both as a mixed number which is

8/17 as a mixed number is 2 1/17

9/17 as a mixed number is 1 8/17

8 0
2 years ago
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trasher [3.6K]
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5 0
3 years ago
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Answer:

Step-by-step explanation:

3x^2+24x=0\\factor: 3x(x+8)=0\\x=0, -8

6 0
2 years ago
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Answer:

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Step-by-step explanation:

Area = l x w

65m = 13m x w

5m = w

Perimeter = 2(l + w)

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Perimeter = 36m

3 0
2 years ago
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