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Serggg [28]
3 years ago
6

Find the average mark10,15,12,18,22,25,30,27,40,21​

Mathematics
2 answers:
frez [133]3 years ago
6 0

Answer:

10+15+12+18+22+25+30+27+40+21=220

220/10=22

Answer-:22

Step-by-step explanation:

zubka84 [21]3 years ago
5 0

Answer:

add everything then divide by 10 your answer is 22

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Mr. Sanchez bought 2 magazine for 9.95 each and 1 book for 14.95 if the sales tax is 6% what is the total cost of Mr. Sanchez pu
Dima020 [189]
Rst you have to find the price of everything together

2 magazines for 9.95 each and a book for 14.95

9.95 + 9.95 + 14.95 = 34.85

Next you convert the percent to a decimal

6% = 0.06

Now you put a one in the ones place

1.06

Multiply this by the cost of everything

34.85 * 1.06 = 36.94

The answer is $36.94

Hope this helps!

Read more on Brainly.com - brainly.com/question/10235412#readmore
5 0
3 years ago
Can you help me with number 6? <br> Confused abit <br> Please
Sunny_sXe [5.5K]

You can see the three diagram attached. Each link is labeled with the probability: you have probability 1/6 that a six is rolled, and 5/6 that it is not rolled.


To answer the questions, find the path that brings you to the desired outcome, and multiply all the labels you meet.


First question:

To get three sixes, you have to choose the left path at each roll. The probability is always 1/6, so the answer is


\frac{1}{6} \times \frac{1}{6} \times \frac{1}{6} = \frac{1}{6^3}


Second question:

To get no sixes, you have to choose the right path at each roll. The probability is always 5/6, so the answer is


\frac{5}{6} \times \frac{5}{6} \times \frac{5}{6} = \frac{5^3}{6^3}


Third question:

To get exactly one six, it can either be the first, second or third roll.


In all cases, you have to choose the left path once and the right path twice: left-right-right mean that you get the six in the first roll, right-left-right means that you get the six in the second roll, right-right-left means that you get the six in the third roll.


In every case, the left turn has probability 1/6, and the right turn has probability 5/6. The probability of each combination is thus


\frac{1}{6} \times \frac{5}{6} \times \frac{5}{6} = \frac{5^2}{6^3}


And since there are three of these combinations, The answer is


3\frac{5^2}{6^3}


Fourth question:

Since the question suggests to use what we already achieved, let's do it: having at least one six is the complementary event of having no sixes at all. If an event has probability p, its complementary has probability 1-p. So, since the probability of no sixes is known, the probability of at least one six is


1 - \frac{5^3}{6^3}

4 0
3 years ago
Apple juice costs $3.00 after a 40% discount. Which equation would allow you to find the original price of the apple juice. X re
Stells [14]

Answer: 0.4x = 3 is the answer

Step-by-step explanation:

4 0
3 years ago
Gaira was asked to evaluate the algebraicexpression –3.8x + 6 when x = –7.5.
icang [17]

gaira ALSO multiplied 6 by x, when 6 doesnt have 6x.

so the correct answer would be only -3.8(-7.5) + 6 which is 34.5.

5 0
3 years ago
Read 2 more answers
A rectangle poster has a length of 24 inches,what is the perimeter of the poster?
yanalaym [24]

Answer: 72 inches

Step-by-step explanation:

To find the perimeter of a rectangle, simply follow this equation:

L+L+W+W

Or alternatively,

2L+2W.\\

  • We know that the Length (L) is equal to 24 inches and the width (W) is 12 inches.

So just add it into the equation and solve!

- Option 1

24+24+12+12 = p\\48+24=p\\72=p

- Option 2

2(24)+2(12)=p\\48+24=p\\72=p

Either way you do it, the answer is 72 inches.

  • Hoped this helped!~

6 0
3 years ago
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