Mathematics High School

Assume that three fifths of the population has long hair and and one tenth of the poulation has blue eyes. What is the probability that a person does not have long but does have blue eyes?

Answers

Answer 1

Answer:

1/25

Step-by-step explanation:

If 3/5 have long hair, then 2/5 do not have long hair

So, the probability of no long hair, has blue eyes = 2/5(1/10) = 1/25

Related Questions

I couldn’t figure this probably out. Please help

Answers

Answer:

x = 9

Step-by-step explanation:

Perimeter of rectangle = 2(l+b) = 42

=> 2(x+3 + x)

=> 2 (2x + 3) = 42

=>  4x + 6 = 42

=> 4x = 42 - 6

=> 4x = 36

=> x = 36/4

=> x = 9

Hope it helps :)

Answer:

Formula = (l + b) x 2= 42 so answer = x=9

Step-by-step explanation:

l =x

b =x+3

( x+x+3) * 2 =42

2x +3 x 2 = 42

2x +3 = 42/2

2x +3 = 21

2x = 21 - 3 =18

x = 18/2

x=9

HELPPPP PLZZZzzzzzzzz

Answers

Answer: A
Explanation:

6TH GRADE MATH!!

A store makes 20% profit on the total price of all the items they sell.

let t represent the total price of all items sold in dollars, and let p represent the profit in dollars.

1) WRITE AN EQUATION TO REPRESENT THE RELATIONSHIP BETWEEN THESE VARIABLES:

Pls help! I don’t understand!! :/

Answers

Answer:

p=1/5t

Step-by-step explanation:

Since t is 100% of the items sold and p is 20% of that, the profit, p is 20% of t, or 1/5t.

Answer:

p = t(0.2)

Step-by-step explanation:

The profit is 20% of the total price. So if you multiply the total price by 0.2, you will get 20% of the total price which is the profit.

jack needs 22 pirates for every 2 pirate ships he manages ​

Answers

Answer: 55:5 121:11

Since the ration is 11:1 then all you have to do is multiply x times y example: 5x11= 55 pirates

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP NEED ANSWER NOW!!!!!!!!!!!!!!!!!
solve each linear system by GRAPHING. CHECK YOUR ANSWER
2.) x - y = 6
2x = 12 + 2y

3.)1/2 x - y = 4
2y = x + 6

Answers

Answer:

2.) Infinitely many solutions

3.) No solutions

Step-by-step explanation:

To solve systems of equations graphically, you need to find where they intersect

2.) First put each equation in the form y=mx+b

x-y=6 -> y= x-6

2x=12+2y -> y= x-6

Then, graph each line

Since we have the same equation, the lines are on top of each other so there are infinitely many solutions as they intersect everywhere.

To check, plug a point in from the graph into both equations and you should get 0=0

3.) First put each equation in the form y=mx+b

1/2x-y=4 -> y=1/2x-4

2y=x+6 -> y=1/2x+3

Then, graph each line

Since the lines have the same slope but a different y intercept, the lines are parallel. Therefore, there are no solutions as they do not intersect.

To check your answer, you would one equation as the y in the other equation.

2(1/2x-4)=x+6, then solve for x

Then plug that x into the original equations, and you'll see they are not equal. Hope that helps!

Will give Brainlies!!!
What is the y=mx+b of the equation 3x−2y=12

Answers

Answer:

y=3/2x-6

Step-by-step explanation:

To find the y=mx+b you need to move the y on one side while moving the others on the other side

First, move the 3x to the other side by subtracting by 3x on both sides:

-2y=-3x+12

Divide by -2 on both sides:

y=3/2x-6

Answer:

y=3/2x-6

Step-by-step explanation:

3x-2y=12

isolate the y:

-2y=-3x+12

get rid of the coefficient in front of y by dividing by -2

y=-3/-2x+12/-2

y=3/2x-6

what is the result of adding these two equations 8x-4y=-4 -3x+4y=5

Answers

Answer:

8x-4y=-4

-3x+4y=5

+

-----------------(adding equation)

5x=9

is a required answer

rotation reflection or translation which one is it

Answers

translation because it’s moving to a different grid but the size and shape stays the same. if it were rotation the position would be different.

10-x=-2x what is it ???

Answers

Answer:

x = - 10

Step-by-step explanation:

Given

10 - x = - 2x ( add 2x to both sides )

10 + x = 0 ( subtract 10 from both sides )

x = - 10

PLEASE HELP ME. I WILL GIVE BRAINLIEST IF CORRECT

Answers

Answer:

c) [tex]h(t)=-16(t-1.5)^{2}+676[/tex]

Step-by-step explanation:

Each of the given equations is written in vertex form. This means that the vertex is written in the equation. The quadratic term (the term to the second degree), contains (x), and a value that is either added or subtracted to it. The additive inverse (meaning a number times negative one) of that number is the x-coordinate of the vertex. Therefore, the term inside the parenthesis is (-1.5). The constant is the y-coordinate of the vertex, and therefore it is 676. Since the object is being thrown off a cliff, gravity acts on it. The gravitational constant in feet per second is (-16), hence the coefficient of the quadratic term is (-16).

PLSSSSSSS HELP IM GIVING LOTS OF POINTS :D

Answers

Answer:

2= 4

3= -9

4= 1 and 2/3

Philip needs a board 28 inches long to complete a scout project how long is this in feet and inches

Answers

Answer:

2 ft 4 inches

Step-by-step explanation:

12 inches = 1 ft

28/12=2.4

what is the graph of y = x2 + 8x + 4?

Answers

answer here’s the graph

55 videos to 77 videos

Answers

Answer:

The ratio is 55:77

Step-by-step explanation:

Beth has $105 in her bank account. She buys x shirts for $5.75 each. Write and solve an equation Beth can use to find how many shirts she can buy with the money in her account.

Answers

Answer:

The equation for that would be 5.75x=105 and if you wanted the value for x it is 18.26(18 shirts)

Step-by-step explanation:

SInce she can't buy any decimal or fraction of a shirt then it would be 18 shirts.

(2x + 3) + (x + 1)
help​

Answers

3x+4 combine like terms I think lol

Nana bought 12 books for $28.50. What was the unit price?

Answers

Answer: 2.375 per book

Step-by-step explanation:

Answer:

2.375 per book

Step-by-step explanation:

divide 28.50 by 12 to get the unit rate which is 2.375 per book

i need help i'm really stuck

Answers

Answer:

8

Step-by-step explanation:

If the area is 32 and the formula for area of a triangle is base * height / 2, and you have base = 8 and height = x and area = 32, this would be:

8 * x / 2 = 32

Now, solve:

[tex]8x/2=32\\4x=32\\x=8[/tex]

Answer:

x=8

Step-by-step explanation:

Area is equal to half of the base times the height. We are told that the area is 32and the base is 8, so we can write this equation:

32=1/2(8)h

Multiply 1/2 by 8:

32=4h

Divide both sides by 4:

h=8

So now we know that x (the height) equals 8.

HTH :)

For the 1,000-meter running event, Abby's mean time is 4.5 minutes with a standard deviation of 0.75 minutes. For the 800-meter event, Abby's mean time is 3.2 minutes with a standard deviation of 0.4 minutes. In the last track meet, Abby ran the 1,000-meter race in 4.1 minutes and the 800-meter race in 3 minutes. In which event did Abby have a better performance?

Answers

Answer:

He performed better in the 800 m race

Step-by-step explanation:

Obtain the standardized score for each event :

Zscore = (score - mean) / standard deviation

1000 meter :

Mean = 4.5 ; Standard deviation = 0.75 ; x = 4.1

Zscore = (4.1 - 4.5) / 0.75

Zscore = - 0.4 / 0.75 = - 0.5333

800 meter :

Mean = 3.2 ; Standard deviation = 0.4 ; x = 3

Zscore = (3 - 3.2) / 0.4

Zscore = - 0.2 / 0.4 = - 0.5

-0.5 > - 0.533

Hence, he performed better in the 800 m race

Answer:

Abby had a better performance in the 800-meter because this z-score was closer to the mean than the z-score for the 1,000-meter.

Step-by-step explanation:

did it on egde

Hi! Can someone help me?
3-x divide by 3/5; x=1/4

Answers

Hope this helps have a nice day

WILL MARK YOU BRAINLIEST

Answers

Answer:

the second : the angles are congruent and the side lengths are proportional

I think it’s answer D

Please help me finish !
will give brainiest

Answers

Answer:

6. 60

7. 24.25

8. 28.00111604  or 28

Step-by-step explanation:

30 +90 =120 180-120=60

Sin A = a/c, so a = cSin A. Also Cos A = b/c, so b = cCos A so Sin30=14/c=28

Cos30=b/28 b=24.25

now 14^2+24.25^2=c^2 which gives 28.00111604 or 28

Evaluate a + (-6) where a =
4 and b= 2.

Answers

Answer:

-2

Step-by-step explanation:

a + (-6), a = 4

(4) + (-6)

4 - 6

= -2

Grace has a bag of candy corn with 378 pieces. She wants to divide it equally and give it to 9 friends in smaller bags. How many pieces of candy corn should she put in each bag?

Answers

Answer:

42 pieces

Step-by-step explanation:

you do 378÷9

then you'll get the answer which is 42 pieces

Find the slope and y-intercept of the line.
4)
m=
b=

Answers

Answer:

m=y = 2x + 4.

y intercept is 4

Step-by-step explanation:

What standard form polynomial expression represents the perimeter of this quadrilateral

Answers

Answer:

5x³ + 6x² + 0x - 8  <== answer

Step-by-step explanation:

There is no picture, but i did that homework before.

all rational numbers are integers trure or false​

Answers

Answer:

False

Step-by-step explanation:

False
All rational numbers are no integers

Find the equation of the line use exact numbers
Y= ?x + ?
Fill in the ? Please I need help ASAP

Answers

Answer:

y=-2x+5

Step-by-step explanation:

y=mx+b
m=-2 (slope)
b= 5 (y-int)
y=-2x+5

The population of a town in Devon was 2000.
A few years later, the population went down to 1800.
Find the percentage decrease.

Answers

Answer:

10%

Step-by-step explanation:

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What has to happen for scales to be balanced?​

Answers

Answer:

When the pans contain exactly the same mass the beam is in balance. ... You can place an object in one pan and standard weights in the other to find what the object weighs. Here balance scales are used to show that the box "x" has a mass of 4

Answer:

a balances measure mass, while scales measure weight. So if you bring a balance and a scale to the moon, the balance will accurately give you the mass of, say, a moon rock, whereas the scale will be affected by the gravity. A balance determines mass by balancing an unknown mass against a known mass.

Step-by-step explanation:

its right believe me and mark brainliest plz

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