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aleksandr82 [10.1K]
2 years ago
10

In a mathematics test given to 15 students, the following marks (out of 100) se recorded. Find the mean 41,39,48,52,46,62,54,40,

96,52.98,40,42,52.60​
Mathematics
2 answers:
fgiga [73]2 years ago
8 0

Answer:

54.8

Step-by-step explanation:

41+39+48+52+46+62+54+40+96+52+98+40+42+52+60 = 822

822/15= 54.8

Please mark this as Brainliest if it helped you

Gre4nikov [31]2 years ago
7 0

Hey there! I'll try to provide you with my best answer.

Answer: 51.198 but if the question asks approximation then it's 51 .

In order to find we the mean, we add them all and divide the total by how many numbers there were. So,

(41 + 39 + 48 + 52 + 46 + 62 + 54 + 40 + 96 + 52.98 + 40 + 42 + 52.60​)/13

= 665.58/13

= 51.198

Approximately its 51

Hope it helps! ^^

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Olin [163]

Step-by-step explanation:

You should prolly subtract 2 from both sides first.

So you get, -|2/5x + 3| > -1 2/5

  • Add three to both sides
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  • Do -1 and 2/5 divided by 2/5 to get -3.5, x > -3.5

One of the answers is x > -3.5 but you need to switch the sign to less than and make the other side the opposite.

-( \frac{2}{5}x + 3 ) < 1 \frac{2}{5}

You see that, switched the sign and made whats on the right side opposite. So now solve for x again but with this new equation. Also, the parentheses are absolute value signs

Subtract 3 from both sides

-|2/5x| < -1 and 3/5

Divide 2/5 from each side to get x < -4

I hope I'm correct, my bad if I'm wrong

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3 years ago
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The surface areas of two similar solids are 384 yd squared and 1057 yd squared The volume of the larger solid is 1795. What is t
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This is the concept of scale factors, we are required to calculate for the volume of the smaller solid if the larger solid has a volume of 1975.
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linear scale factor=√(1057/384)=5.7019
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