Mathematics High School

In a group of 20 students, 7 study both Art and Biology.
5 study Biology but not Art.
8 study neither subject.
Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?​

Answers

Answer 1

Answer:

Step-by-step explanation:

A + B = 7

(Not A) + B = 5

(Not A) + (Not B) = 8

(Not A) = ((Not A) + B) + ((Not A) + (Not B) = 13

A = 20 - (Not A) = 7

Prob (A + B) given (A)

Prob (A+B) || A = (7/20) / (7/20)

Prob (A + B) || A = 1

Related Questions

simplify a-c when a=5 c= -1​

Answers

5- -1= 6


Snsjsnankajsjfjskwkdndbsnajnww

Answer:

5- -1= -6

Step-by-step explanation:

think of it as being in debt, you owe someone 1 dollar than you borrowed 5 more dollars from them now you owe them 6 dollars, that's what subtracting negatives are like.

Help me! I cannot figure out how to reverse these.

Test each statement below to see if it is reversible. If so, write it as a true biconditional. If not, write not reversible



5: A perpendicular bisector of a segment is a line, segment, or ray that is perpendicular to a segment at its midpoint.


6: Two angles that form a linear pair are adjacent.

Answers

im not sure about 5 but 6 is:
adjacent are two angles that form a linear pair

Negative one-fifth of a number, increased
by 3, is at most 1.

Answers

12 + 8 *89 is the answer

The number x ≤ 10 for the inequality (-1/5)x + 3 ≤ 1.

What is inequality?

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

Negative one-fifth of the number, increased

by 3, is at most 1.

Number = x

This can be written as,

(-1/5)x + 3 ≤ 1

Solve for x.

(-1/5)x + 3 ≤ 1

(-1/5)x ≤ 1 - 3

(-1/5)x ≤ -2

x ≤ -2 x (-5/1)

x ≤ 10

Thus,

The number is less than or equal to 10.

Learn more about inequalities here:

https://brainly.com/question/20383699

#SPJ5

A 2-bedroom apartment that rents for $520 a month is $40 less than twice the cost of a 1-bedroom apartment. What is the monthly rent of a 1-bedroom apartment?​

Answers

Answer:monthly rent of a 1-bedroom apartment= $280

Step-by-step explanation:

Let the  cost of 1 bed room apartment = x

And the cost of two bedroom apartment= 2x-40

Since the cost of of two bedroom apartment = $520  

Then the cost of one bed room part will be expressed as

520= 2x- 40

520+40 = 2x

560= 2x

x= 560/ 2

x= 280

Therefore the  cost of 1 bed room apartment = x= $280

Can someone pleaseee help quickly ???!!!??

Answers

Answer:

what's the question I can't answer it without the question

Uh where’s the question?

please hurry

The figure below shows a shaded rectangular region inside a large rectangle:

A rectangle of length 10 units and width 5 units is shown. Inside this rectangle is a smaller rectangle of length 4 units and width 3 units placed symmetrically inside the larger rectangle. The smaller rectangle is shaded gray.

What is the probability that a point chosen inside the large rectangle is not in the shaded region?

76%
50%
24%
12%

Answers

The area of the smaller rectangle is 12, and the area of the bigger one is 50, so the probability that it is not chosen inside the shaded region is (50-12)/(50)=76%

Answer

76% its right i took the test!

Step-by-step explanation:

PLS ANSWER ITA DUE IN A FEW MINUTES

Answers

number 2 is 60% , number 3 is 45% , number 4 is 20% , number 5 is 55%

Answer:

2 is 60%

3 is 45%

4 is 20%

5 is 55%

Step-by-step explanation:

Want an explanation, or no? Your choice :)

Triangle ABC.
Angle A is a right angle
Angle B = x +4
Angle C = x
Find the value of x
Please answer this fast!

Answers

Answer:

i believe the answer is 46. good luck!

Help please! Thank You!

Answers

Answer:

I just needed points sorry!

it’s A i don’t know if it’s true but here’s where i got it from!

How many really solutions does 4a^2 = 8a− 4 have

Answers

Answer:

It has one solution which is a=1

Solve for X

2/3 ( x - 7) = -2

Fastest Answer will get Brainleist Points

Answers

Answer:

2(x−7)/3 =−2

2x-14/3=-2

x=4

What is the total area of the figure below?
8 in.
16 in
6 in 10 in.
9 in.

Answers

Answer:

141 inches (not sure if that's an option but that's what I got

Step-by-step explanation:

I added the areas of the trapezoid and the triangle in the screenshots

Answer:

141

Step-by-step explanation:

Area of triangle = 24

Area of Trapezoid= 117

117+24

141

Abigail's mom asked her to go to the store and purchase 5 kilograms (kg) of potatoes. When she got to the store, she saw the potatoes were sold by the pound. How many pounds of potatoes does she need to buy?

Answers

1 kilogram = 2.205 pounds

5 kg * 2.205 lbs = 11.0231 pounds

Round to pounds = 11
Round to tenths/1 decimal = 11
Round to hundredths/2 decimals = 11.02

Plz only answer if you know you are correct

Answers

Answer: slope = 3/4

Step-by-step explanation:

Here is another question

Answers

Answer:

The correct answer is G

Step-by-step explanation:

Lets choose a point: T( 2,3)

Now lets find the Slope: Run(x) = -4

Rise (y)= -9

So to get to Point T' from Point T, you myst go to the left 4 units and down 9 units.

Therefore, the correct answer is:

G) A translation following the rule (x - 4, y - 9)

please help!! how do i solve/answer this

Answers

it’s 1,-2!! it’s where the lines meet

Write the equation of a line with an undefined slope that passes through the point (-6,3)

Answers

Answer:

x = -6

Step-by-step explanation:

A line with an undefined slope is vertical and is always represented by the equation x = a number. That number, whatever it may be, represents the x-value of all the points it intersects. Thus, take the x-value of the point (-6,3) and put it into the equation. So, the equation must be x = -6.

Name a combination of coins that is 125% of the value of a dollar.

Answers

9 quarters...................

I guess you could say 5 quarter or four quarter a dime and 3 nickels. There are many answers since 125 percent of 100 is 125

Given the regular nonagon, solve for x and y.

Answers

Step-by-step explanation:

9x = 360 (circle angle = 60°)

x = 40

2y + 40 = 180 (sum of interior angles of a triangle)

2y = 180 - 40

2y = 140

y = 70

1/4.+50=250 it’s a real world equation

Answers

Answer:

Wrong dude.

Step-by-step explanation:

1/4 + 50 = 50.25

(Is this a satire question)?

Hm.........………



…
…
…

Answers

5/12 but if u need a site to do these problems on look at the comments on this answer

hellllpp, with both number 1 and 2, first one to answer gets brainliest, be sure of your answer please!​

Answers

Answer:pretty sure 1 is 23 and 2 is 211200

Step-by-step explanation:

1. 92/4 is 23

2. Just used a calculator on

Why does paying off the highest interest rate credit card first make the most mathematical sense?

Answers

Answer:

The card with the highest interest rate is usually the one that will cause you the most financial pain. The national average interest rate on a credit card is 15.2 percent, so if you bought a $1,000 …

Answer:

Paying off the highest interest rate credit card first makes the most mathematical sense because it will save you more money and allow you to redirect funds to other financial goals faster. Paying off the highest interest rate first is better because this way you get to avoid financial problems and avoid having to pay too much money of interest since the card with the highest interest rate is usually the one that will cause you the most financial pain.

How many triangles can be constructed with the following measures?


explain how you got this awnser ​

Answers

I got the answer by adding the triangles

Which of the following properties would you use to simplify the following expression? 6(y+9)

a. Distribution Property
b. Commutative Property
c. Associative Property
d. Multiplication Property of Zero

Answers

The correct answer would be A. Distribution Property! :)

I will mark you brainiest if you can answer this

Answers

Answer: 6250

Step-by-step explanation: 5 to the 5th power is 3125. Times that by 2 and you get 6250.


Can some one please help me?

Answers

Answer: C

Step-by-step explanation: basicly all u have to do juss multilpy how many on top with the extra boxes, hope this helpss :)

Answer:

A. 5/9

explanation:

The answer is A.

Multiply the fractions.

You can use a calculator online for that. I did and it said 5/9.

When multiplied you get 10/18 and then simplify its 5/9

Find the slope of the line

Answers

-5/5 do rise over run

-x + y = 4
x + 3y =4​

Answers

The answer is -2,2 for this problem

what is the sum
-5.7+ (-4.2)=

please answer

Answers

Answer:

-5.7-4.2=-9.9 is answer

-9.9 is the answer!!!
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