Mr. Brown has 20 students in his English 6 class. There are 15 boys and 5 girls. If he puts all their names in a hat and draws out one, what is the probability of
drawing a boy's name?
Fraction: type your answer...
Decimal: type your answer..
Percent: type your answer.

Answers

Answer 1

Answer:

Divide

Step-by-step explanation:

Answer 2
fraction: 3/5
decimal: 0.6
percent 60%

Related Questions

Consider the following inductive arguments, and evaluate each one for inductive strength. To do this, begin by assuming that the argument's premises are true (even if they are false). Then ask yourself whether the conclusion would therefore probably be true as well. If the answer to this question is yes, then the argument is strong. If the conclusion is not likely to be true based upon the given premises, then the argument is weak.

Argument A:
Whales and dolphins are both mammals. So, because whales cannot breathe underwater but must come up to the ocean's surface to breathe, it is likely that dolphins must also swim to the surface to breathe air.
Argument A is :_______
a. strong
b. weak

Argument B:
Harry has always had an aptitude for history, geography, and social sciences, but he has always struggled with abstract concepts such as mathematics and physics. But Harry must take a college physics course to fulfill a general education requirement for his degree. Based on his academic track record, it is likely that Harry will be one of the top students in his college physics course.

Argument B is :_______
a. strong
b. weak

Argument C:
Out of a bag of 100 marbles, 97 red marbles were drawn in a row at random. Based on this sample, it is probably the case that the remaining 3 marbles are also red.

Argument C is :_______
a. strong
b. weak

Argument D:
The label on the side of a certain soda can indicates that the can was manufactured by Ball Corporation in their plant in Fairfield, California. Based on the information on the can's label, it is unlikely that the can was manufactured by any company other than Ball Corporation.

Argument D is :_______
a. strong
b. weak

Answers

Answer:

Argument A: a. strong

Argument B: b. weak

Argument C: a. strong

Argument D: a. Strong

Step-by-step explanation:

Dolphins and whales are mammals. They do not have gills like other fishes for breathing. They have to come to surface of water to breathe. The whales can store oxygen and can stay alive without breathing for more than an hour while dolphins can stay without breathing for few minutes. Harry has struggles with physics and mathematics therefore he cannot be top scorer in this subject based on his past track record.

What does it mean to have a skewed distribution? What causes
a skew in statistical terms? And how does one deal with skewed
data when conducting research? Are there specific types of
research questions and types of data where one would expect
the data to be skewed?

Answers

Answer:

Explained below.

Step-by-step explanation:

A) A skewed distribution in a dataset is when the median is not equal to the mean in such a manner that the bell curve is tilted to the left or right.

B) If in a data set, there are outliers which are extremely large or extremely small in comparison to other values in that same dataset, then we can say that such a curve will be pulled towards the outlier and thus the distribution is skewed.

Also, if the curve is inclined to the left, it means there are few extreme values to the left and is is negatively skewed.

Similarly, if the curve is inclined to the right, it means there are few extreme values to the right and is positively skewed.

C) Example of a research question is;

If in a developed country where the poverty level is about 0%, if we collect the data of income of the households, we will discover majority of people with average income and very few people with extreme high levels of income. This condition means the data to is positively skewed.

A man buys a horse for $60. He sells the horse for $70. He then buys the horse back for $80. And he sells the horse again for $90. In the end, how much money did the man make or lose? Or did he break even?

Answers

Answer:

The correct answer is that he made $20.

Step-by-step explanation:

A man buys a horse for $60. He sells the horse for $70. He then buys the horse back for $80. And he sells the horse again for $90.

Answer:

He made 20 dollars

Step-by-step explanation:

Buying is negative and selling is positive

-60+70-80+90

+20

He made 20 dollars

Am I supposed to add or divide?

Answers

Answer: 11.20

Step-by-step explanation:

Divide. 56.00 ÷ 5 = 11.20 therefore each shirt cost 11.20 Hope that helps!

Answer:

Divide.

Answer : option B

Step-by-step explanation:

Cost             Number of shirts

 56                      5

  x                        1

     

 [tex]\frac{56}{x} = \frac{5}{1}[/tex]

[tex]5 \times x = 56 \times 1\\\\x = \frac{56}{5} = 11.20[/tex]

Given () = 3 + 2, what is the value of (2)?

Answers

Answer:5

Step-by-step explanation:

Solve the equation by factoring. X^2+2x-63=0

Answers

Answer:

x = -9 ; x = 7

Step-by-step explanation:

We have to find two numbers whose product is -63 and whose sum is 2

the two numbers are 9 and -7

(x+9)(x-7) = 0

x = -9

x = 7

Pleas help will mark brainlist!

Answers

Geometry

This makes a cube because a cube has 6 faces, 8 vertices, and 12 edges.

That shape makes a cube


Can someone help me please I need the mode, median, range and the mean.?

Answers

Answer:

First the mode.  Since 5 popped up the most, 5 is the mode.

Next is the median.  I crossed 1 dot from each side until it shows the last dot, and 5 was the last one.

After that the range.  9-2=7

Finally the worst, the mean... 2+2+3+3+3+4+5+5+5+5+5+6+6+6+8+9+9+9+9

=104/19=5.47

SO, Mode=5 Median=5 Range=7, and the mean is 5.47 (rounded nearest hundred)

What’s the answer pls

Answers

Answer:

D

Step-by-step explanation:

speed = space/time

24/4.3 = 5.6 ft/s

solve x and y in 2^x ×3^y =72​

Answers

Answer:

x = 3 , y = 2

Step-by-step explanation:

We need to solvd the the given exponential equation , the equation is,

[tex]\bf\implies 2^x \times 3^y = 72 [/tex]

Now write 72 as prime factors of 2 and 3 ,

[tex]\bf\implies 2^x \times 3^y = 2^3 \times 3^2 [/tex]

On comparing ,

[tex]\bf\implies x = 3 \\[/tex]

[tex]\bf\implies y = 2 [/tex]

Express the following decimal as a fraction. ONLY ANSWER IF YOU KNOW THE ANSWER

Answers

Answer:

that would be 67/125 easy

Answer:

537/1000

Step-by-step explanation:

that number rounded is 0.537 because every number after is a 6 so you round it up and it cannot be simplified any further

Little’s Law Firm has just one lawyer. Customers arrive randomly at an average rate of 6 per 8 hour workday. Service times have a mean of 50 minutes and a standard deviation of 20 minutes. How long does a customer spend at Little’s Law Firm on average?

Answers

Answer:

On average, customer spends approximately  98 min at Little’s Law Firm

Step-by-step explanation:

Given the data in the question;

Arrival rate λ = 6 per 8 hours =  6 / ( 8 × 60 )min = 6 / 480 = 0.0125 per minute

Service rate δ = 1 / 50 min = 0.02 per minute

Standard deviation σ = 20 min

Now,

Utilization rate U = Arrival rate / Service rate

U = 0.0125 / 0.02

Utilization rate = 0.625

Number of people in Queue will be;

⇒ ( (λ² × σ²) + U² ) / ( 2 × ( 1 - U )

we substitute

⇒ ( (0.0125² × 20²) + 0.625² ) / ( 2 × ( 1 - 0.625 )

⇒ ( 0.0625 + 0.390625 ) / ( 2 × 0.375 )

⇒ 0.453125 / 0.75

Number of people in Queue = 0.6042

Now

Wait in the Queue = Number of people in Queue / λ

= 0.6042 / 0.0125 = 48.336

Wait Time in Office = Wait in the Queue + ( 1 / δ )

= 48.336 + ( 1 / 0.02 )

= 48.336 + 50

Wait Time in Office = 98.336 ≈ 98 min

Therefore, On average, customer spends approximately  98 min at Little’s Law Firm

cross section, the ratio of the area of the circle to 4 square, the volume of the cylinder equ ea of the square is ap? or 4 2. Cross section 2 o the volume of the prism or (a I the volume of the prism or (4 O I the volume of the prism or 12 o the volume of the prism or (4 h

Answers

Answer:

ya

Step-by-step explanation:

Use Pythagorean theorem to find the missing side of the triangle write the exact answer no decimals
Last two options: 300
2/10

Answers

Big man pyth said a^2 + b^2 = c^2. He also said c has dat big ting. So x^2 + 10^2 = 20^2. Than just convert them and rearrange. 400 - 100 = x^2

So [tex]\sqrt{300}[/tex] is the answer. Than simplify the surd.   10 [tex]\sqrt{3}[/tex]

shush

What is probability? Give an example.

Answers

Answer:

just another way to say problem

Step-by-step explanation:

100 POINTS!!!!!!!!!!!!!!
If the diameter of Nicole's bike wheel is 90 cm, what is the approximate distance the wheel travels in one revolution?

Answers

Answer:

The distance traveled in one revolution is 282.6 cm.

Step-by-step explanation:

Diameter of wheel, d = 90 cm

The distance traveled by the wheel in one revolution is circumference.

The circumference of the wheel is

[tex]C = \pi\times d\\C =3.14\times 90\\C = 282.6cm[/tex]

Find the value of the expression below.
log5 25
O A. 2
OB. 0.5
O C. 125
O D. 5

Answers

Answer:

A.2

Step-by-step explanation:

log5(25)

log5(5²)

2

PLEASE HELP!!!! What is the measure of angle BCD

Answers

Answer:

82° because

98° + 70° = 168°

360° - 168° = 192°

192° is for two angles, so it can't be 192°, 220°

it's not VERY obtuse angle. So it remains only 82°

Graph the inequality. y ≥ |x + 5| - 3

Answers

Answer:

1

Step-by-step explanation:

Find the product of (x − 7)2

Answers

Answer:

the answer is 2x-14.

Step-by-step explanation:

because 2 multiply both the number 2 and x

Find the measure of the central angle of a regular polygon with 16 sides.

Answers

Answer:

Each angle of a regular hexadecagon is 157.5 degrees, and the total angle measure of any hexadecagon is 2520 degrees.

The points (-6, r)
and
(6,3) lie on a line with slope 3/4. Find the missing coordinate r.

Answers

Answer:

r = -6

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

[tex]y = mx + b[/tex]

In which m is the slope and b is the y-intercept.

Slope 3/4

This means that [tex]m = \frac{3}{4}[/tex], and thus:

[tex]y = \frac{3}{4}x + b[/tex]

(6,3)

This means that when [tex]x = 6, y = 3[/tex]. We use this to find b. So

[tex]y = \frac{3}{4}x + b[/tex]

[tex]3 = \frac{3}{4}(6) + b[/tex]

[tex]b = 3 - \frac{18}{4} = \frac{12}{4} - \frac{18}{4} = -\frac{6}{4}[/tex]

So

[tex]y = \frac{3}{4}x - \frac{6}{4} = \frac{3x - 6}{4}[/tex]

(-6, r)

r is y when [tex]x = -6[/tex]. So

[tex]y = \frac{3(-6) - 6}{4} = -6[/tex]

So r = -6.

Ill give brainliest.....

Answers

C....................
the answer is 15

trust me it’s 15

Find the equation of a line that contains the points (4, -2) and (-8, -1). Write the equation in slope-intercept form, using
fractions when required.

Answers

Answer:

y =−12 /1 x−3 /5

The ratio of the numbers of students in Mr. Moore’s class compared to the number of students in Miss Henry’s class is 5:4. The ratio of the number of students in Miss Henry’s class compared to the number of students in Mr. Wilson’s class is 8:9. What is the ratio of number of students in Mr. Moore’s class to Mr. Wilson’s class.

Answers

Answer:

10:9

Step-by-step explanation:

First ratio is 5:4. 4 is equal to Henry class

If you múltiply the ratio by 2 you get

10:8, This ratio can be compared because now Henry class has 8

2(5:4)

10:8

8:9

Meaning that the answer is 10:9

Please help!!
Need to get this done

Answers

Given:

Segment AD is perpendicular to segment BC.

D is the midpoint of segment BC.

To prove:

[tex]\Delta BDA\cong \Delta CDA[/tex]

Solution:

The two column proof is shown below:

Statements                                                      Reasons

1. [tex]\overline{AD}\perp \overline{BC}[/tex], D is the midpoint of [tex]\overline{BC}[/tex]         1. Given

2. [tex]\overline{BD}\cong \overline{CD}[/tex]                                                 2. Definition of midpoint

3. [tex]m\angle ADB=90^\circ \text{ and }m\angle ADC=90^\circ[/tex]         3. Definition of perpendicular lines

4. [tex]m\angle ADB=m\angle ADC[/tex]                                4. Substitution

5. [tex]m\angle ADB\cong m\angle ADC[/tex]                                5. Definition of congruence

6. [tex]\overline{AD}\cong \overline{AD}[/tex]                                                 6. Reflexive property

7. [tex]\Delta BDA\cong \Delta CDA[/tex]                                      7. SAS congruence postulate

Hence proved.

plz i need help asap ill give brainliest Find the area of the shaded regions: ​

Answers

Green part is 56.548667772

Answer:

I think it's 19.72

Step-by-step explanation:

A = r²· a / 2

Find the slope of the line through each pair of points.
(4.-4). (14, -13)

Answers

Answer:

X2 -X1 / Y2 - Y1

Step-by-step explanation:

14- 4 / (-13) - (-4)

10/-9

Emily bought 33 yards of fabric to make curtains.

How many inches of fabric did Emily buy?

Emily bought inches of fabric.

Answers

1188 inches of fabric

Help me with this please

Answers

Answer:

An angle of a regular octagon is 135°

(n-2)180°/n

where n is number of sides

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