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Viktor [21]
2 years ago
7

Out of the 50 colleges in a cer- tain state, 25 are private, 15 offer engineering majors, and 5 are private colleges offering en

gineering majors. Find the probability that a college selected at random from the state (a) offers an engineering major. (b) offers an engineering major, given that it is public. (c) is private, given that it offers an engineering major. (d) is public, given that it offers an engineering major.
Mathematics
1 answer:
Semmy [17]2 years ago
3 0

The probability that a college selected at random from the state are (a)  3/10, b- 2/5, c- 1/2  and d- 1/10.

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

Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.

The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.

Out of the 50 colleges in a certain state, 25 are private, 15 offer engineering majors and 5 are private colleges offering engineering majors.

The probability that a college selected at random from the state (a) offers an engineering major.

= 15 / 50

= 3/10

The probability that a college selected at random from the state (b) offers an engineering major, given that it is public.

= 20 /50

= 2/5

The probability that a college selected at random from the state (c) is private, given that it offers an engineering major.

= 25/50

= 1/2

The probability that a college selected at random from the state (d) is public, given that it offers an engineering major.

= 5/50

= 1/10

Learn more about probability here;

brainly.com/question/11234923

#SPJ1

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Which is in an equation of the line through (0,0) and (-8,-5)?
slava [35]

To finde the equation of the line troughh the points (0;0) and (-8;-5) first you must find the slope of the line. You have to use the next formula:

m=\frac{y2-y1}{x2-x1}

Replacing the points in the previous formula

m=\frac{-5-0}{-8-0}=\frac{5}{8}

As the line passes trough the origin of coordinates (point (0;0)) the equation is:

y=\frac{5}{8}x

So the answer is y= 5/8 x (option B)

6 0
1 year ago
Games Galore Super Store buys the latest video game at a wholesale price of $30.00. The markup rate at Game's Galore Super Store
marishachu [46]

Answer:

<h2>$42</h2>

Step-by-step explanation:

By definition, Markup is the difference between a product's selling price and cost as a percentage of the cost.

For example, if a product sells for $125 and costs $100, the additional price increase is ($125 – $100) / $100) x 100 = 25%.

Given data

firstly let us solve for 40% of $30

=40/100*30

=0.4*30

=$12

therefore the sale price will be the markup rate plus the initial price

<em>Hence the you will have to pay 12+30=$42</em>

6 0
3 years ago
The sum of three odd consecutive numbers is fifty-one. What are the numbers?
Fantom [35]

Answer:

15,17,19

Step-by-step explanation:

Make an equation : x+(x+2)+(x+4)=51

Solve the equation:3x+6=51

3x=51-6

3x=45

x=15

Since x=15 then the second number is 17 and then 19

Hope this helps!

Stay Safe

7 0
4 years ago
If DE=1.5m-9 and EF=4.5m-42 what is the value of DF (equilateral triangle)
11111nata11111 [884]

Answer:

DF = 7.5

Step-by-step explanation:

Since the 3 sides are congruent, then

EF = DE , that is

4.5m - 42 = 1.5m - 9 ( subtract 1.5m from both sides )

3m - 42 = - 9 ( add 42 to both sides )

3m = 33 ( divide both sides by 3 )

m = 11

Thus

DE = 1.5m - 9 = 1.5(11) - 9 = 16.5 - 9 = 7.5

Then

DF = 7.5

3 0
3 years ago
How many kilometers are in 765 yards? 1 yard = 3 feet 1 mile = 5,280 feet 1 kilometer = 0.621 miles
luda_lava [24]

Answer:

There are 0.70km in 765 yards.

Step-by-step explanation:

This is a problem of conversion of units, that can be solved by multiple rule of three's.

The first step is converting 765 yards to feet. We have that each yard has 3 feet, so

1 yard- 3 feet

765 yards - x feet

x = 765*3

x = 2295

So, in 765 yards there are 2295 feet.

Now, we have to convert 2295 feet to miles. Each mile has 5280 feet, so:

1 miles - 5280 feet

x miles - 2295 feet

5280x = 2295

x = 0.435 miles

So, in 765 yards there are 2295 feet which is 0.435 miles

Now, the final step is converting from miles to kilometers. Each km has 0.621 miles, so:

1km - 0.621 miles

xkm - 0.435 miles

0.621x = 0.435

x = 0.70km

So, there are 0.70km in 765 yards.

7 0
3 years ago
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