A bag contains 3 red cubes, 4 yellow cubes, and 3 green cubes. You choose a cube without looking, note its color, and put the cube back in the bag. Suppose you do this a total of 80 times. About how many times would you expect to choose a red or yellow cube?

Answers

Answer 1

Answer:

is it multiple choice that would help

Step-by-step explanation:

Answer 2

Answer:

56 times

Step-by-step explanation:

Total cubes:

3 + 4 + 3 = 10

Number of yellow or red:

3 + 4 = 7

Probability of yellow or red:

7/10

Same probability 80 times:

80*7/10 = 56

Expected number is 56


Related Questions


I need help with this If right

Answers

Answer:

14° I think sorry if its wrong this was quick one

Answer:

[tex]10^0[/tex]

Step-by-step explanation:

the sum of all angles should add to a straight line, a straight line has an angle of 180 so add 92 and 78 subtracting the total from 180

[tex]92+78=170\\180-170=10\\answer =10^0[/tex]

?????????????????????

Answers

Answer:

0 and 4

Step-by-step explanation:

wright 2/5:1/20 as a unit rate

Answers

Answer:

2 miles per hour

Step-by-step explanation:

What is the slope of the line that goes through points (2.9) and (5.3)?

Answers

Answer:

0 ZER0

Step-by-step explanation:

There is no slope it would be a straight line across the x axis

Answer:

-2

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(3-9)/(5-2)

m=-6/3

simplify

m=-2

7)
2 1
Please help giving Brainly

Answers

Answer:

You should use MathPapa.

Step-by-step explanation:

If f(x) = 2x - 6 and g(x) = x3, what is (g x f) (6)

Answers

Answer:

36x² - 108x

Step-by-step explanation:

(g x f) (6)

((3x) x (2x - 6)) (6)

6x² - 18x (6)

36x² - 108x

The new Samsung 9 phone costs $500, and has a sales tax of 15%. What is the final price?

Answers

Answer:

575

Step-by-step explanation:

500 x .15 = 75

500 + 75 =575

Mai biked 5 1/4 miles today, and Noah biked 2 1/2 miles. How many times the length of Noah’s bike ride was Mai’s bike ride?

Answers

Answer:

The length of Mai's bike ride was 2.1 times the length of Noah's ride.

Step-by-step explanation:

Mai biked 5 1/4 miles today

So he biked, in miles:

[tex]5 + \frac{1}{4} = \frac{5*4 + 1}{4} = \frac{20+1}{4} = \frac{21}{4}[/tex]

Noah biked 2 1/2 miles.

So, in miles, he biked:

[tex]2 + \frac{1}{2} = \frac{2*2 + 1}{2} = \frac{4+1}{2} = \frac{5}{2}[/tex]

How many times the length of Noah’s bike ride was Mai’s bike ride?

We divide the Mai distance by Noah's distance. In a division of fractions, we multiply the numerator by the inverse of the denominator. So

[tex]\frac{\frac{21}{4}}{\frac{5}{2}} = \frac{21}{4} \times {2}{5} = \frac{21*1}{2*5} = \frac{21}{10} = 2.1[/tex]

The length of Mai's bike ride was 2.1 times the length of Noah's ride.

The triangle below lie on the same line. Find the horizontal distance of the smaller triangle.

Answers

Answer: The answer is 2

Step-by-step explanation: I had the same question and I got the answer right

A number
consisting of
two digits whose sum is 9.
If three times the number is
equal to eight times the
number formed by interchanging
the digits, find the number.​

Answers

Answer:

let the unit digit be x

and the tens digit be y

so x+y = 9 ---> y = 9-x

the number is 10y+x

the number reversed is 10x + y

3(10y+x) = 8(10x + y)

30y + 3x = 80x + 8y

22y = 77x

2y = 7x

2(9-x) = 7x

18 - 2x = 7x

18=9x

x=2

y=7

the number is 72

check:

number is 72

reverse is 27

is 3(72) = 8(27)

whether you are writing a radio, TV, movie, or add script, it is a good idea to follow the correct _____.
a) format
b) theme
c) narration
d) imagined
e) visual ​

Answers

Answer:

a) format

Step-by-step explanation:

whether you are writing a radio, TV, movie, or add script, it is a good idea to follow the correct Format.

Select the correct answer.
What is the fractional form of 0.02?
A.
2
99
B.
1
11
2
100
C.
O
D.
12
Reset
Next

Answers

Answer:

the answer is B

Answer:

2/100

or 1/50

is your answer

Step-by-step explanation:

Q. What is the fractional form of 0.02?

→ 0.02 = 002/100 = 2/100

HOPE THIS HELPS YOU

Follw me = 10 thanks

Mark as brainliest = 10 thanks

1 thanks to me = 2 thanks

determine the slope on the graph

Answers

Answer:

3

Step-by-step explanation:

look at where the points at

The answer is 3 I think

What is 2/8 as a decimal and percent

Answers

Answer:

0.25 is a decimal and 25/100 or 25% is the percentage for 2/8.

Step-by-step explanation:

The result is: 0.25 and 25% is 2/8 as a decimal and percent.

Here, we have,

given that,

the fraction is:  2/8

now, we have to write as a decimal and percent.

so, we get,

2/8

[ dividing both numerator and denominator by 2 ]

= 1/4

= 0.25

so, we get, 0.25 is a decimal.

now, we have,

0.25 = 25/100 = 25%

so, we have, 25/100 or 25% is the percentage for 2/8.

To learn more on percentage click:

brainly.com/question/13450942

#SPJ6

Brainiest for the right answers...

Answers

Answer:

9. B 10. C 11. B 12. B

Step-by-step explanation:

Answers would be appreciated :)

Answers

Answer:

a) 39cm, b) 7.5cm, c) 40m, d) 35 ft

Step-by-step explanation:

a) 13(3)=39, b) (5x3)/2=7.5, c) (8x10)/2=40, d) (10x7)/2=35

Answer:

a. 39 cm

b. you cant see b that clearly :(

c. 40

d. 34.99 = 35

so sorry if these arent right

can smby plz help me ?!

Answers

Omgggg an iready diagnostic..

Was I right in this question for trigonometry?

Answers

Answer:

First two parts are right, last part is 8.2

Step-by-step explanation:

First two parts are right.

Last part is wrong.

Sin(ANGLE)=opp/hyp

sin(20)=W/24

0.34202014332=W/24

W=8.20848343982 or 8.2


Please help I will put Brainliest!!!!

Answers

Answer:

Ill tell you the bases and exponents, 2 is the base and 2 is the exponent. 3 is your base and 2 is your exponent. 5 is your base and 3 is your exponent. 10 is your base and 3 is your exponent. 4 is your base and 2 is your exponent. 5 is your base and 2 is your exponent. 6 is your base and 2 is your exponent.

2^2
base: 2
exponent: 2
expanded notation: 2*2
standard notation: 4

3^2
base: 3
exponent: 2
expanded notation: 3*3
standard notation: 9

5^3
base: 5
exponent: 3
expanded notation: 5*5*5
standard notation: 125

10^3
base: 10
exponent: 3
expanded notation: 10*10*10
standard notation: 1000

4^2
base: 4
exponent: 2
expanded notation: 4*4
standard notation: 16

5^2
base: 5
exponent: 2
expanded notation: 5*5
standard notation: 25

6^2
base: 6
exponent: 2
expanded notation: 6*6
standard notation: 36

Question 2 answers (just put this in to hit character limit ;-;)
21


6


9


15

Answers

Answer: I think it is 21  just helping out people sorry if wrong.

Step-by-step explanation:

I need help with this points if right

Answers

Answer:

A

Step-by-step explanation:

90-49=41

41-3=38

49+(38+3)=90

Use the Pythagorean Theorem to find the missing side.
Round to the nearest tenth
10 m
7.5 m

Answers

The fourth one 12.5!

It's self-explanatory, hope this helps!

10/11 x 7/9 x 1/2 help meh!

Answers

Answer:

35/99 or .35 repeating

Step-by-step explanation:

just multiply

Answer:

35/99

Step-by-step explanation:

Multiply and you'll get 35/99 0.35 with a line above 35 which means repeating

Can y’all help me on question 4?! I would really appreciate it have a good day!

Answers

Answer:

15:2

Step-by-step explanation:

If you take 45 / 6 you will end up with 7.5

You can't have a ratio with a fraction. So to get a whole number you multiply 7.5 by 2 to get a full number. Therefore 15:2

9514 1404 393

Answer:

  D.  Volcanic Gray

Step-by-step explanation:

The ratio of paint used is ...

   black : white = (4 gal) : (1/2 gal) = 8 : 1  . . . . . .  multiply given numbers by 2

This matches the ratio in the table for Volcanic Gray.

What is (3x^3)^3 in factored form? Help

Answers

Answer:

This can't really be factored, but it can be expanded slightly.

(3x³)³ = 27x⁹

What is the area?? Plz I need help and there are still 18 questions left

Answers

Answer:

24

Step-by-step explanation:

Pleaseeeeeeeee answer if you do your the best at life!!!!!

Answers

x+(-8)= -12

x-8= -12

x= -12+8

x=-4

-3 + x = 10

x=10+3

x=13

-2+x= -5

x=-5+2

x=-3

Answer:

x+(-8)= -12

x-8= -12

x= -12+8

x=-4

-3 + x = 10

x=10+3

x=13

-2+x= -5

x=-5+2

x=-3

Step-by-step explanation:

30 kilograms of beans costs $5. How many kilograms of beans can you buy for $20?

Answers

Answer:

120 kg

the kilograms of beans which can by for $20 are

30*(20/5) = 30.4 = 120 (kg)

Answer: 120 kilograms

Step-by-step explanation:

We can buy 30 kilograms of beans for $5 dollars. We need to find how many kilograms of beans we can buy for $20.

The first step is to divide 20 by 5. Then, using the quotient, we can multiply it by 30 to see how many kilograms of beans we can buy for $20.

20 ÷ 5 = 4.

4 x 30 = 120.

Therefore, we can buy 120 kilograms of beans for $20.

Cool beans ;)

5/6x+2/3x+4=7

What is x and I REALLY REALLY NEED AN EXPLANATION

Answers

5/6x + 2/3x + 4 = 7

5/6x + 2/3x = 9/6x

9/6x + 4 = 7

9/6x + 4 - 4 = 7 - 4

9/6x = 3

9/6 in decimal form is 1.5 thus

1.5x / 1.5 = 3/1.5

x = 2

Mona needs to photocopy a 14.5 centimeters wide by 15 centimeters long picture. She wants to enlarge the picture so that its length will be
37.5 centimeters. How wide will the enlarged picture be?
O a
38.8 cm
Ob
37 cm
ос
93.75 cm
Od
36.25 cm

Answers

Answer:

The enlarged picture will have a width of 35.8 cm

Step-by-step explanation:

We can solve this question by proportions, using rule of three.

When the length is of 15 centimeters, the width will be of 14.5 centimeters. What is the width when the length is 37 centimeters?

15 cm - 14.5 cm

37 cm - x

Applying cross multiplication

[tex]15x = 14.5*37[/tex]

[tex]x = \frac{14.5*37}{15}[/tex]

[tex]x = 35.8[/tex]

The enlarged picture will have a width of 35.8 cm

Answer:

36.25 cm

Step-by-step explanation:

37.5 divided by 15 is 2.5 then multiply 14.5 by 2.5 and your answer will be 36.25 cm.

I hope this helps the last answer you got was close but incorrect. I really hope I get brainlyiest. :)

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