Mathematics Middle School

There are red, blue, and black marbles in a bag. •The probability of pulling out a red marble is 2/5. •The probability of pulling out a black marble is 1/10. •One marble is pulled out at random. What is the probability the marble will be blue?
A. 7/10
B. 3/5
C. 1/2
D. 3/10

Answers

Answer 1
The probability is 1/2
Answer 2

Answer:

1/2

Step-by-step explanation:

Because the 1/10 + 2/5 = 1/10 + 4/10 + 5/10 =  1/2

Related Questions

Which is a Function and which isn't a Function

Answers

Answer: I believe  that A is the function to this problem

Step-by-step explanation:

Answer:

1 - A is not a function

2 - B is not a function

3 - A is not a function

X can have only 1 value

for example 2B features x=5 where f(x) = -4 but also 1. That means it's not a function

Find the volume of the cylinder:
Either enter an exact answer in terms of er or use 3.14 form.

Answers

Answer:

471 units

Step-by-step explanation:

Hope this will help

SOMEONE HAS TO HELP ME LIKE PLEASE

Answers

Answer:

surface area of cube=6×side²

surface area of cube=6×(2.2cm)²

surface area of cube =29.04cm²

Answer:

The total surface area is 39.9 cm

Step-by-step explanation:

There are 6 total squares all areas of 6.6 cm.

6 x 6.6 is 39.9 thus, this is the answer (I am pretty sure)

Answer the question with NUMBERS ONLY.

Answers

Answer:

3÷45=15

6÷90=15

120÷8=15

15 sit- ups every 1 minute. Explanation, 3 divided by 3 is 1. (for unit rate) so you have to do the same to 45. boom your answer is 15 sit ups per minute MAGIC

Simplify f^9h^23 divided by f^3h^17 Please help, and I will give Brainliest.

Answers

STEP

1  

           f9h23

Simplify   —————

           f3h17

Dividing exponential expressions :

   f9 divided by f3 = f(9 - 3) = f6

Dividing exponential expressions :

    h23 divided by h17 = h(23 - 17) = h6

Final result:

 f6h6

Answer:  f6h40

Step-by-step explanation:

STEP

1

           h23

Simplify  

           f3

Equation at the end of step

1

         h23

 ((f9) • ) • h17

         f3

STEP

2

:

Multiplying exponential expressions :

2.1    h23 multiplied by h17 = h(23 + 17) = h40

Final result :

 f6h40

Here are the answer choices

A. Each year the number of the new members using the website is more that the year before.
B. Since 2003 there have been 200 members added every 2.5 years.
C. The website received over 200 hundred members in 2004.
D. The website had 200 operating members at the end of 2003.

Answers

Answer:

D

Step-by-step explanation:

its the only one that isnt true.

B. The graph is exponential do it cannot be written in y=mx+b form
It has to go up more and more not at a constant

A survey found that 2 out of 8 students do not own a pet. If there are 480 students in a school, what is a reasonable prediction for the number of students who own a pet?


a.
360

b.
12

c.
120

d.
36

Answers

A. 360 is the answer

Answer: The answer is C. 120

Step-by-step explanation:

2/8 is = to 1/4. Knowing this you just need to find how much a fourth of 480 is. Divide 480 by 4 to find out and that's your answer.

HELP QUICKLY WHAT ANSER DO I PUT IN THE SLOTS

Answers

Answer:

is the number 2

Step-by-step explanation:

6/12=6÷2=3

12÷2=6

plz help again only answer if you have done this

Answers

Bottom left
EXPLANATION: The least value will be the one when you multiply something less than 1. the middle is when you multiply exactly one. and the greatest is when you multiply more than 1 by 564
The Awnser is the bottom left

Write a division expression for the fraction, 9/13

Answers

Answer:

9 divided by 13

Step-by-step explanation:

im not sure if this is right.

If you answer this correctly I will give the brainiest and ANSWER ALL OF THEM 1 through 4 plz I beg you

Answers

Answer:

Step-by-step explanation:

Part 1

$6.84 + $4.88 + $8.32 + $4.98 = $25.02

The total cost of the steaks comes to $25.02.

Part 2

2 × 20 = 40

40 - 25.02 = 14.98

1.25 is 5% of 25.02

14.98 - 1.25 = 13.73

The family gets $13.73 back in change.

Part 3

6.84  ÷  12 = 0.57  

4.88  ÷  8  =  0.61

8.32  ÷  16 =  0.52

4.98  ÷  6  =  0.83

Part 4

0.83 - 0.52 = 0.31

They should buy larger steaks to share because the larger steaks are $0.31  cheaper than the smaller steaks.

1. the total cost is $25.02

You have to add all the cost of the family had which is $6.84+$4.88+$8.32+$4.98

2.they would get $13.73 back

I got it by the $25.02 from the last one and add with tax which was 5% so I then in total of $26.271 and since this is money I rounded it up to $26.27. After I got that I subtracted the $40 since they use 2 $20. $40-$26.27=$13.73

3. I think it would be the estimate of 0.60 per ounce

I got that by dividing the total cost and the all the ounces which I got the estimate of 0.60

4. I think they should order the larger steaks than the smaller steaks to share since it would be for one family.

I am sorry if one of them are wrong but I hope this could help you.

Brenda pours laundry detergent from a bottle into the cap and then into the washing machine. Every time she fills the cap, the amount of detergent in the bottle changes by -0.26 liters. She fills the cap 3 1/4 times in all. John has a different bottle of detergent that is the same size. Every time he fills his cap, the amount of detergent in his bottle changes by -0.21 liters. He fills his cap 2 5/6 times in all. What was the total change for Brenda's bottle? What was the total change for John's bottle? Write as a decimal.

Answers

Brenda’s Bottle answer:

3 1/4 = 13/4 in improper fraction form.

13/4*-0.26 = -0.845. This is the difference in the change.

John’s Bottle answer:

2 5/6 = 17/6 in improper form

17/6*-0.21 = -0.595 in difference.

Thank you! I hope this helps!

IM CONFUSED
How did the emperor slowly lose power at the end of the Heian period?

He began to lose the support of the samurai.
The daimyo lost their support from the people.
A new emperor was picked from among the samurai.
Strong daimyo eventually controlled more land and influence.

Answers

The answer should be c

What is 8x-7(x+3)+5x

Answers

Answer:

I'm not 100% sure love, but I think it would be 12x.

Step-by-step explanation:

Answer:

6x-21

Step-by-step explanation:

First distribute

8x-7(x+3)+5x

8x-7x-21+5x

Then combine like terms

8x-7x-21+5x

6x-21

i need help please i dont know how to do this

Answers

56.13 hope I helped.

PLS HELP 7X < 63


thanks

Answers

Answer:

7x=63 So, x=63/7=9. Hence, the answer is 9.

Step-by-step explanation:

Answer:

x < 9

Step-by-step explanation:

Amy sells bracelets for two dollars each. She is charged $7 to rent a booth at a craft fair.

Write an equation to represent Amy’s total profit (y) and the amount of the bracelets she sells (x).

Answers

Answer:

Y means profits and x is the number sold.

Step-by-step explanation:

(2$ times x) - 7=y.

Answer:

($2 times x) - 7=y.

Step-by-step explanation:

2/7 + 1/6 + 1/5 = ???

Answers

Divide 2/7 and 1/6 and 1/5 then add all of them together

Find the slope on these questions.
16= ??
17=??
18 = ??
19 = ??
20-??

Answers

16 = 0

17 = 1

18 = 10

19 = -4.1 ( -4)

20 = -5

I'm not sure if these are the answers but hope it helps some how!

16= (1,1)
17= (1,3
18=(10,0)
19= (4,1)
20= (5,0)

The following scenario is for #7, 8, 9, and 10 on this test.* A sign in a bakery gives the following options: Option A is 12 cupcakes for $30. Option B is 24 cupcakes for $66. Option C is 50 cupcakes for $129. What is the cost of one cupcake for Option B?

Answers

Cupcakes in option B would be $2.75 each

Answer:

The cost of one cupcake for Option B is 2.75

Step-by-step explanation:

66 ÷24=2.75

I need help finding the missing angles

Answers

Answer:

3) 61

4)60

Step-by-step explanation:

Explanation is that a triangle total degrees is 180 so you would take the two numbers you have and add them (80 + 39= 119) Then you subtract that number from the total degree from a triangle. (180-119 = 61) Then you get your answer :)

Algebra 1 unit 6- need help asap please show work. Answers that are not applicable will be reported. thanks to whoever helps!

1. Without using a calculator, place the following values from greatest to least. You may use a calculator to check your answers. Show all your work. (see screenshot)

2.Place the following values from greatest to least, where x is a real number. You will need to first simplify the expressions, then choose your domain. Start with when x>1. What about when x<-1? Does your answer change? What about 0

Answers

Answer: you got this try your best

Step-by-step explanation:

I need help within second with showing work anything can help

Answers

He starts with 15 points, so B and D are out right away. We can remove A, because he needs at least 55 points or more, so C is your answer.

ANSWER ASAP!! PLEASEEE

Answers

Answer:

neither

Step-by-step explanation:

exponent means to multiply the number which has the exponent on it to itself like if 2 has the exponent 3 then that means 2 x 2 x 2

please make me the brainliest!

Elena is correct. Because the number 28 is smaller and above the number two, that means it is the exponent. The exponent, or the power, tells you how many times you multiply the number by itself. For example 2 to the 3rd power or 2 with a small 3 above it would be 2 x 2 x 2 which is 8 instead of 2 x 3 which is 6. I hope this helped you and good luck!

pls help I don't get it

equation: 9 x j(2 + 5).

You will now use mathematical properties to create two expressions that are equivalent to the expression you created in Question 1. Make sure you show all steps in your work

Answers

Answer

9j x 18 + 45

Step-by-step explanation:

( 9 x j ) x ( 9 x 2 ) + ( 9 x 5 )

= 9j x 18 + 45

HELP!!!!!!

Define each of the following:
Population
Random sample
Inference

Answers

Answer:

Population amount of people

random sample, is a random sighting,

inference, interesting

Step-by-step explanation:

which of the following is not a solution for finding the perimeter of the square? 2y+2

Answers

2y + 2 is wrong your welcome
i think it’s 2x + 2y!!

What are the answers to these

Answers

In the picture you can see the steps
X=32

PLSSSSS HELP ME
I
NEED
HELP
BAD
aHHHHHHHHHhhhhhhhhh

Answers

Answer: Easy

Step-by-step explanation: Formula is A=1/2bh

Answer:

64 square feet

Step-by-step explanation:

First we start off by finding the area of the room. 16 times 8 is 128. But we need to find what each half would be. Half of 128 is 64, meaning our answer is 64 square feet.

The pen for Ruth’s dog is 7 feet long and 6 1/2 feet wide. Her friend Ralph’s dog pen is 14 feet long and 6 1/2 feet wide. How many times larger is the area of Ralph’s dog pen?

Answers

Answer:

They are equal to 2

Step-by-step explanation:

Answer: equal to 2 :)

Step-by-step explanation:

Other Questions
Carlos walked to school on 14 of the 20 school days in February. Which value is equivalent to the fraction of the school days in February that Carlos walked toschool?A 70%B. 0.07C. 0.142DO 56% The normal condition of all the territory of the United States is that of freedom. That as our Republican fathers, when they had abolished slavery in all our national [western] territory, ordained that no person should be deprived of life, liberty or property, without due process of law, it becomes our duty by legislation, whenever such legislation is necessary, to maintain this provision of the Constitution against all attempts to violate it; and we deny the authority of Congress, of a territorial legislature, or of any individuals, to give legal existence to slavery in any territory of the United States.Question: Republicans asserted that political leaders could not give legal existence to slavery in any territory of the United States in order to express opposition against the aremoval of American Indians from their homelands bidea of popular sovereignty exemplified by the Kansas-Nebraska Act capplication of California for statehood drecruitment of laborers for Northern factories True or False: Electromagnetic waves are classified according to wavelength, or the distance between waves. When should a golfer begin play on each hole? 1. A student lifts a box of books that weighs 200 N. The box is lifted 2.5 m. How much workdoes the student do on the box? He said to me, "What's your name"? into direct speech. In Animal Farm, How does Napoleon use fear to keep himself in power? What are some freshwater systems and what do they all share in common? Explain the relationship between the water we use in daily life and the water we use toirrIgate the trees Fill in the blank with the correct word(s) to complete the sentence.A three-dimensional figure has ______, width, and _____.A.length; heightB.length; congruentC.height; patternD.length; patternWHO EVER SOLVES THIS FIRST GETS BRAINLEST >:) What is the potential energy of a rollercoaster if it weighs 1000 kg and sits on a 110 m tall ride? You and three friends buy 4 movie tickets. Each person buys a $3 popcorn. The total cost is $72. Letx represent the cost of 1 movie ticket Write an equation forthe total cost Houseman, Inc. anticipates sales of 50,000 units, 48,000 units, 51,000 units and 50,000 units in July, August, September and October, respectively. Company policy is to maintain an ending finished-goods inventory equal to 40% of the following month's sales. On the basis of this information, how many units would the company plan to produce in September Olivia baked 21 mini-loaves of banana bread to be sliced for snacks at a craft fair. She will place an equal number of loaves in 4 different locations.How many loaves will be at each location?Divide to find the quotient and remainder. r 4 parenrightzb 21 Decide how to use the quotient and remainder to answer the question.There will be loaves at each location. what is the measure of n = 40, p=0.95, X = 38P(38) = What is the equation of the line that passes through the point (-1,-7)(1,7) and has a slope of 2 Help me with this. Ill give brainliest Examples of corruption in animal farm. Someone answer asapppp How can we mitigate the effects of a hurricane? (select all that apply) *A. Track the path of the hurricaneB. Warn peopleC. EvacuationD. Go into the water