A chorus has 5 girls and 15 boys. If two are chosen at random to sing a duet, what is the probability that both will be boys?

Answers

Answer 1

Answer:

Step-by-step explanation:

If you ad them together you get 20 15/20 are boys 15 divided by 20 is .75

Answer 2
.75 or 75%

If there’s 20 kids total in the class and 15 out of the 20 are boys then you would divide the 15 by 20 and get .75 if you were doing it for girls then you would divide 5 by 20 and you would get .25 or 25%

Related Questions

pls show how you got the answer 56.35 divided by 7

Answers

394.45/7=56.35. First times the awnser by what you divide it by, then thats your awnser

Answer:

Honestly It would be hard to show how I got it, but I can try. The answer is 8.05.

Step-by-step explanation:

Your supposed to see how many times 7 goes into 56.35.

1. Can 7 go into 5? No. What about 56? Yes. It goes into 56 8 times. So right now you have 8.

2. Subtract that 56 by 56 and you get 0. Now carry down 3.

3. Since 7 can't go into 3, then what about 35? Yes. 7 goes into 35 5 times. Now you should have 8.05.

2 math questions below!!!!

Answers

Perimeter is 10 units while the area is 8 units I believe but that’s just by counting the boxes
189393 mammmmmmaaaaaaamamamamama

__Mg + __02 = __Mgo
a). 2, 2, 1
b). 2, 1,2
c). 2, 1, 1
d). 2, 2,2

Answers

The answer is b). 2,1,2

you’re welcome :)

I NEED URGENT HELP PLZZZZZZZZZ

Answers

Answer:

34 Units

Step-by-step explanation:

Edit: typo

Edit 2 : Decided to give an explanation :

Truthfully, this question can be made extremely easy by noticing that it is just 2 triangles placed side by side (the inner corners)

Create a normal rectangle with the 2 triangles and identify the perimeter.

I think the answer is 28.

A 50% decrease followed by a 75% increase


Same as the original, less than, or greater than the original?​

Answers

Greater than the original
Greater than! 25% increase

(posting this for my friend) SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!! I NEED THE ANSWER TODAY THIS ASSIGNMENT IS DUE TODAY

Answers

Answer:

45

Step-by-step explanation:

the 90 degree angle is subtracted by 45 and the answer is.

A student is using a spinner with four equal sections numbered 1 through 4. He also tosses a fair coin. What is the correct sample space for this compound event?

A. {H, T}

B. {(HT, 1), (HT, 2), (HT, 3), (HT, 4)}

C. {(1,H), (2,H), (3,H), (4,H), (1,T), (2,T), (3,T), (4,T)}

D. {1, 2, 3, 4}

Answers

Answer:

C. {(1,H), (2,H), (3,H), (4,H), (1,T), (2,T), (3,T), (4,T)}

anwser: C


stwo by step explanation:

In April, Phillipa rode
13
.
5
+
8
.
7
+
11
.
1
miles on her bicycle. In March, she rode
(
13
.
5
+
8
.
7
+
11
.
1
)
÷
2
miles, and in May, she rode
4
×
(
13
.
5
+
8
.
7
+
11
.
1
)
miles.

Determine the month when she rode the most and the month when she rode the least. How many times farther did she ride in the month when she rode the most than in the month when she rode the least?

Enter your answer in the box.

She rode
times farther.

Answers

Answer:

Month 1:  she rode 33.3 miles

Month 2: she rode 16.65 miles

Month 3: She rode 133.2 miles

meaning in Month 3 she rode about 4 times more then month one and about 8 times more then she did in month 2

Step-by-step explanation:

Pls help no links pls

Answers

Answer:

the answer is A

Step-by-step explanation:

[tex]x + 10 = 2x - 4 \\ 10 + 4 = 2x - x \\ x = 10 + 4 \\ x = 14[/tex]

10 divided by 4 is equal to x is ur answer

what does the f represent in f/4 = 22

Answers

Answer:

8

Step-by-step explanation:

The answer is 88 because 88/4 equals 22

Melissa has 10 1/2 pounds of candy that she wants to share. If she divides the candy between herself and six friends, how many pounds of candy will each person get?

A. 1 1/2 pounds
b.3 pounds
c 73 1/2 pounds.
d 1 3/4 pounds
PLS HELP!!

Answers

Answer:

I think the answer is A

Step-by-step explanation:

How many times further is Neptune from the Sun than Mercury is from the Sun? ​

Answers

Hope this helps and I did not use the picture but here is what I know

Answer: Mercury's average distance from the sun is 5.791 x10e9 km. about how many times farther from the sun is Neptune than mercury? On average, Mercury is about 57,000,000 km from the sun , whereas Neptune is about 4.5*10^9 km from the sun.

Neptune is 10000000 times further from the sun than Mercury is.

5.2 times 9.3 times what equals 120.9 ?

Answers

Answer:

5.2x9.3x2.5=120.9

hope this helps have a great day :3 also can i get brainliest ty

Answer:

2.5

Explanation:

5.2×9.3×2.5=120.9

I got the answer by multiplyinh 5.2×9.3=48.36 then i divided 120.9 by 48.36 to get the answer which is 2.5

a rectangle has a total area of 1116 square feet. If the length of the rectangle is 12 ft, what is the width of the rectangle?

Please show work!​

Answers

the width of the rectangle is 93

For an oxidation reaction, the temperature T required is warmer than 50°C. Complete the following inequality by dragging the correct symbol to the box.
< > ≤ ≥

T 50°C

Answers

Answer:

t<50.c I think if I read right

Answer:

T > 50°C

Step-by-step explanation:

The question is asking for an inequality that shows the required temperature for T. Since < means less than and > means greater than we will use >.

T > 50°C is the same as saying T is greater than 50°C which is what we are looking for.

REWARDING BRAINLY FOR CORRECT ANSWER

Answers

Answer:

range=19

Step-by-step explanation:

Answer:

50.5

Step By Step Explanation:

The IQR describes the middle 50% of values when ordered from lowest to highest.

41.44.46.47.48.49.52.57.57.60.60

There were two numbers in the center.

Add 49+52.

49+52=101

Divide 101 by 2.

101÷2=50.5

Explain how you would estimate 2 3/5+ 5 2/7+ 3/4.

Answers

The answer would be 8 2/3

Please answer this. Thank you!

Answers

Answer:

8: 73.2 cm

10: 738 mm

Step-by-step explanation:

8: A= 12.2 (4.5 + 7.5) / 2 --> 146.2 / 2 = 73.2 cm

10: A= 36 (22 + 19) / 2 --> 1,476 / 2 = 738 mm

Answer:

8: 73.2

10: 738

Step-by-step explanation:

Area of a trapezoid = [tex]A=\frac{a+b}{2} h[/tex]

where a and b = base lengths and h = height

For #8

These are the given dimensions

Base 1 = 4.5

Base 2 = 7.5

Height = 12.2

All we have to do is plug in the values into the formula

So....

[tex]A=\frac{4.5+7.5}{2} 12.2\\4.5+7.5=12\\\frac{12}{2} =6\\6*12.2=73.2[/tex]

Hence the answer is 73.2cm²

For #10

Once again all we have to do is plug in the values into the formula

[tex]A=\frac{22+19}{2} 36\\22+19=41\\\frac{41}{2} =20.5\\20.5*36=738[/tex]

Hence the answer is 738

please help me due at tomorrow 8a.m

Answers

C I believe hope this helps
It is C
You got this!

plzzz help its really easy , im just really du mb

Answers

Answer:

36.8/2.8 = 16

Expression 1 = 368/28

Expression 2 = 3.68/.28

Step-by-step explanation:

If you move the decimal the same on both numbers of a division problem the answer stays the same.

Answer:

1. 32÷2, 64÷4

2. 16

Step-by-step explanation:

Expression 1:

32÷2=16, and 64÷4=16.

Expression 2:

Change the divisor 2.3 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.

We then have the equations:

368 ÷ 23 = 16

and therefore:

36.8 ÷ 2.3 = 16

Both calculated to 0 decimal places.

NEED HELP ASAP!!!!!!!

Answers

Answer:

1. Four thousand five hundred ten

2. 51.65 rounded to the nearest whole number is 52.

3. 2622 divided by 3 = 874

4. [tex]6940 / 10^{2}[/tex] = 69.4

5. 3/4 x 5 = 3.75 or [tex]3\frac{3}{4}[/tex]

6. (2 x 7) - (2 x 5) = 4

7. The area is [tex]\frac{6}{7}[/tex]

8. 70 - (20-13) would probably work

Please give my brainliest if I helped!

A number is at least three. Which of the following number lines represents this statement?

Answers

Answer:

Where are the lines?

Step-by-step explanation:

Answer: Pick the first number line in the image not the second.

Step-by-step explanation: Shaded circle means included, open circle means not included.

An equation is shown below:
6(2x - 11) + 15 = 3x + 12
Part A: Write the steps you will use to solve the equation, and explain each step. (6 points)
Part B: What value of x makes the equation true? (4 points)

Answers

x = 7
6(2x-11)+15=3x+12
distribute the 6:
12x-66+15=3x+12
add -66 and 15:
12x-51=3x+12
subtract 3x from both sides:
9x-51=12
add 51 to both sides:
9x=63
divide 9 from both sides:
x=7
X=7 hope this helps

If five students are playing a game and each student is equally likely to win the game, what is the probability that student 2 will win?
A. 1/2
B. 1/3
C. 1/4
D. 1/5

Answers

1/5 is the answer. Because there are 5 kids

Answer: C 1/4

Step-by-step explanation:

A store that buys and sells used video games buys a game at a cost of ​$19 and sells it at a selling price of ​$23. Find the markup. Then find the percent markup.

Answers

Answer: $62.25

Step-by-step explanation:

The mark-up is $477.25 - 415 = $62.25

Your answer will be $62.25

help me pls pls pls :(

Answers

it’s pretty confusing so I don’t know

Answer:

803.458042 took me a while hope this helps

HELP PLEASE! NO LINKS! TEN POINTS!

Help please! Explain it if you can please!

Answers

Okay so the diameter is 6 inches right? And the area formula for a circle is: A=pi (they want you to use 3.14) r (radius) ^2 (squared)

A=(pi)r^2

and the area formula for a square is just sxs right? Side x side.

So 6x6=36 (that’s the area for the square)

And since we know the diameter we can figure out the are of the circle (I know it’s a half circle but just wait I’ll get to that)

Diameter is twice the radius.

So likewise the radius is half the diameter.

6/2=3

The radius is 3 inches.

So let’s plug that into the formula

A=(pi)3^2

That comes out to 113.1 inches

Since it’s half a circle we divide it by 2

That’s 56.55

So we add them.

56.55+36= 92.55 inches

Have a good summer :)
The answers is 92.55

help me the assessment due date is tody ..

Answers

Answer:

About 70.71068 m is your answer.

Step-by-step explanation:

V=1/4h﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

≈70.71068

Please mark Brainliest and hope this is right!

i need da answers please
:)

Answers

Answer:

Answer: 20%

To find the percentage of a fraction just do the top number divided by the bottom you get 0.2 and 0.2 is equal to 20% so 20% is the answer hope that helps!

Answer:

1/5 = 20%

Step-by-step explanation:

1/5 = 1 ÷ 5 obviously

So figure out 1 ÷ 5

Your answer would be 0.2

Now, when converting a number to a percent you would multiply it by 100

0.2 × 100 is

20%

I hope I helped! :)

pls help. quickly please

Answers

Answer:

10 months.

Step-by-step explanation:

1200 + 25x = 1450; x = 10

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