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Svetlanka [38]
3 years ago
7

Juan just took a 40 question math test. He scored 75%. How many questions did he get correct

Mathematics
1 answer:
Veronika [31]3 years ago
7 0

Answer:

30

Step-by-step explanation:

  40

x 0.75

-----------

=  30

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Solve by elimination <br> 5x-y=12 <br> 3x+2y=2
Ber [7]
(2)5x-y=12
   3x+2y=2
10x-2y=12
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13x=2
x=0.15
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2 years ago
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What is the volume of a cylinder with base radius 4 and height 7
stealth61 [152]

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351.86

Step-by-step explanation:

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Help please give answer please
Vsevolod [243]

The mean is 8 gerbils and the MAD is 4.29.

<h3>What is the mean?</h3>

Mean is the average of a set of numbers. It is determined by adding the numbers together and dividing it by the total number

Mean = sum of the numbers / total number

(0 + 3 + 6 + 9 + 11 + 13 + 14) / 7 = 8

What is the MAD?

MAD =  ∑ l x - m(x) l

| (0 - 8) + (3 - 8) + (6 - 8) + (9 - 8) + (11 - 8) + (13 - 8) + (14 - 8)| / 7 = 4.29

To learn more about mean, please check: brainly.com/question/25842202

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3 0
1 year ago
I don’t know what to do please don’t give me files I don’t get it
QveST [7]

Answer:

i believe its dependent

Step-by-step explanation:

4 0
3 years ago
Find two positive consecutive odd integers whose products is 99.
tensa zangetsu [6.8K]

Answer:

9,11

Step-by-step explanation:

let the numbers be x, x+2 (since consecutive odd integers have a difference of 2)

therefore;

x(x+2)= 99

x²+2x=99

I usually solve the sum like this,

we need to find the nearest square number ( number smaller than the number on the R.H.S)

here, it is 81, whose square root is 9. therefore the solution is 9

verification:

(9)²+2*9=99

81+18=99

99=99

hence, 9 is the solution. therefore the positive odd consecutive integers are  

x=9

x+2=9+2= 11

verification:

9*11=99

99=99

L.H.S=R.H.S

5 0
3 years ago
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