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3 years ago

In Mr.Martinez's sixth period class, there are 8 boys and 12 girls. what is the probability of randomly selecting a girl?

2 answers:

6 0

Girls=12
Boys=8
Total students=8+12=20

Probability of girls=number of girls/total number of students=12/20=6/10=60%

Answer=60%

Murljashka [212]3 years ago

4 0

The probability of choosing a girl is 12/20

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If a cold object is in contact with a warm object,in which direction is heat transferred

forsale [732]

Answer:towards the cold object

Step-by-step explanation:

because heat goes from warmer places to cooler places.

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3 years ago

A Ferries wheel had a radius of 58 feet. What is the distance a passenger will travel one time around the Ferries wheel?

topjm [15]

Answer:

364.42 ft.

Step-by-step explanation:

For step 1 we should multiply pi by r and 2.

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For step 2 we should multiply pi by 58 and 2.

π x 58 x 2

In result, we should end up with 364.424748 ft. or for short 364.42 ft.

I hope I helped you... Have a great and nice day! :D

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3 years ago

A book seller gains 30% on the cost price by selling a book for $130.Calculate the cost price of the book.

zlopas [31]

Answer:

Let the cost price be x

Selling price, S.P. = 130
Gain % = 30%

$\rm{C.P. = \dfrac{S.P. \times 100}{100+ gain \% }}$

$\rm{C.P. = \dfrac{130 \times 100}{100+30}}$

$\rm{ C.P. = \dfrac{130}{30} }$

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2 years ago

Question 1

Vitek1552 [10]

Answer:

$M.A.D= 4.9$

Step-by-step explanation:

Given

12.7, 22, 23.5, 24, 11, 22

Required

Determine the M.A.D

Start by calculating the Mean

$Mean = \frac{\sum x}{n}$

In this case, n = 6

So:

$Mean = \frac{12.7 + 22 + 23.5 + 24 + 11 + 22}{6}$

$Mean = \frac{115.2}{6}$

$Mean = 19.2$

Subtract the mean from each element

$12.7 - 19.2 = -6.5$

$22 - 19.2 = 2.8$

$23.5 - 19.2 = 4.3$

$24 - 19.2 = 4.8$

$11 - 19.2 = -8.2$

$22 - 19.2 = 2.8$

Take absolute value of the results above

$|-6.5| = 6.5$

$|2.8| = 2.8$

$|4.3| = 4.3$

$|4.8| = 4.8$

$|-8.2| = 8.2$

$|2.8| = 2.8$

The mean of the above gives the MAD

$M.A.D= \frac{\sum |x - u|}{n}$

$M.A.D= \frac{6.5 + 2.8 + 4.3 + 4.8 + 8.2 + 2.8}{6}$

$M.A.D= \frac{29.4}{6}$

$M.A.D= 4.9$

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3 years ago

Determine the intercepts of the line, PLEASE ANSWER ASAP

Alecsey [184]

Answer:

x-intercept = (-40,0) and y-intercept = (15,0)

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3 years ago

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