A teacher simulated her students’ scores on a biology test using 200 trials. The results are shown in the table.

Based on the data from the simulation, what is the probability of students’ scores falling between 80 and 99?

Scores 50-59 60-69 70-79 80-89 90-99
Frequency 13 25 69 58 35
A. 0.535
B. 0.350
C. 0.465
D. 0.580

Answers

Answer 1
The correct answer is C

Related Questions

(1 point)
1. A model is made of a car. The car is 9 feet long and the model is 6 inches long. What is the
ratio of the length of the car to the length of the model?
O 18:1
01:18
09:6
06:9

Answers

Answer:

9:6

Step-by-step explanation:

Given:

Length of car = 9 feet

Length of model of car = 6 inches

Let's find the ratio of the length of the car to the length of the model.

To find the ratio of the length of the car to the length of the model, apply the formula:

Ratio ==> Length of car : Length of model

Ratio ==> 9 : 6

Therefore, the ratio of the length of the car to the length of the model is = 9 : 6

Freezer A has interior dimensions 2 ft×2 ft×4 ft and sells for $399.99. Freezer B has interior dimensions 2.5 ft×2.5 ft×3 ft and sells for $499.99. Which freezer is a better buy in terms of dollars per cubic​ foot? Use pencil and paper. Show your work and explain your reasoning.

Answers

Answer:

Freezer A is a better buy in terms of dollars per cubic​ foot.

Step-by-step explanation:

Freezer A: V = 2*2*4 = 16 ft^3

P/V= 400/16 = 25 $/ft^3

Freezer B: V = 2.5*2.5*3 = 18.75 ft^3

P/V= 500/18.75 = 26.6 $/ft^3

--> 25 < 26.6 that mean Freezer A is cheaper per cubic​ foot.

Please answer this. I will give you Brainliest.

Answers

Answer:

51

Step-by-step explanation:

[tex]\frac{w-3}{7} + 2w[/tex]

[tex]\frac{24-3}{7} + 2(24)[/tex]

[tex]\frac{21}{7} + 48[/tex]

[tex]3 + 48[/tex]

51

Answer:

51

Step-by-step explanation:

24-3=21; 2x24=48; 21/7+48= 51

I Hope this helps! :D

Which terms complete the factorization of x2+27x+162 represented by the model?

27, 9x, 18x
9, 9x, 18x
27, 9x, 27x
9, 9x, 27x

Answers

the factors are 18 and 9

Answer:Answer: 9, 9x, 18x

Step-by-step explanation:

Hope it helps

Emily earns $0.30 for every 0.75 mile she bikes. How much does she earn for 15 miles?

Answers

I’m not 100% sure but I believe it’s 6

Answer:

Emily would earn a total of $6 after biking 15 miles.

Step-by-step explanation:

0.75 x ___ = 15

0.75 x 20 = 15

0.30 x 20 =  6

12. A man walks 7km in 0.7 hours. How fast does he walk?

Answers

Answer:

He walks 10kph.

Steps:

So he walks 1km every 0.1 hour,

1 * 10 = 10

     ^

(which is 1.0 hour)

Answer:

10 km/h

Step-by-step explanation:

Speed = rate at which the man walks

= distance travelled/ time taken to travel the distance.

Distance travelled = 7 kmTime took = 0.7 hours

Speed = distance/time

= 7/0.7

= 70/7

= 10 km/h

Therefore, he walks at a speed of 10 km/h

Brandon has two credit cards and would like to consolidate the two balances into one balance on the card with the lower interest rate. The table below shows the information about the two credit cards Brandon currently uses. Card A Card B Amount $957. 00 $1,476. 12 APR 11% 15% Monthly Payment $18. 22 $31. 21 After 6 years, approximately how much will Brandon have saved in interest by consolidating the two balances? a. $224. 64 b. $935. 28 c. $901. 20 d. $145. 44.

Answers

The amount will Brandon has saved in interest by consolidating the two balances is  $935. 28.

Credit card:

A credit card can be used for the purchase of goods and services. Generally, a credit card has a specific limit. It is known as a line of credit (LOC).

Given

The table below shows the information about the two credit cards Brandon currently uses.

Card A Card B Amount $957. 00 $1,476. 12 APR 11% 15% Monthly Payment $18. 22 $31. 21

72 months payment of Credit Card A

$18. 22 × 72= $1311.84

72 months payment of Credit Card B

$31. 21 × 72= $2247.12

The amount will Brandon have saved in interest by consolidating the two balances is;

$2247.12 - $1311.84 =  $935. 28

Hence, The amount will Brandon has saved in interest by consolidating the two balances is  $935. 28.

To know more about credit cards click the link given below.

https://brainly.com/question/2869849

                                                             

Answer:

✅ A. $224.64

i got it right⬇️

Please help. Thanks!

Answers

Answer:

not sure about this question

a jewerly shop shop sells 240 necklaces in a month. 180 of the necklaces were sold via the shops, website, the rest were sold in a high street shop. work out the ratio of online sales. give your answer in its simplest form

Answers

Answer:

The workout ratio of the online sales to shop sales is 1:3.

Can someone help me solve these inequalities all of them 3/5x+30 is more or equal to 150

Answers

The answer is x is greater than or equal to 200. Please give brainliest if you can! It would be greatly appreciated. Hope this helps you!

When adding like fractions, why is the numerator the only part of the fraction that changes

Answers

If you have the same denominator then only the numerator changes but if the denominators are different then the denominator and the numerator will change

I WILL CHOOSE BRAINLIEST as long as it looks correct


Choose the equation that has solutions ( 5 , 7 ) and ( 8 , 13 ) .


3 x − y = 8
3 x − y = 8

y = x + 2
y = x + 2

y − x = 5
y − x = 5

y = 2 x − 3
y = 2 x − 3

Answers

ANSWER:

y=2x-3

HOPE IT HELPS

Step-by-step explanation:

Add the system of equations each one by one.

I added them all downwards until i found the 4th one to be correct

y = 2x - 3

y = 2x - 3

--------------

2y = 4x - 6

y = 2x - 3.

To find the value of y in each coordinates given above, substitute their respective x values.

1......y = 2(5) - 3

= 10 - 3

= 7.

2......y = 2(8) - 3

= 16 - 3

= 13.

then write the value you substituted in x on the left side of each bracket & the value you got when you substituted them on the right.

(5 , 7) (8 , 13)

The area of a parallelogram that has the base of 15m and A height of 13

Answers

Answer:

···⇒Area=195m²

Step-by-step explanation:

[tex]Solution,\\\\Base(b)=15m\\\\Height(h)=13m\\\\Now,\\\\Area=b*h\\\\Area=15m*13m\\\\Area=195m^{2}[/tex]

Answer:

The area of parallelogram is 195 m².

Step-by-step explanation:

As per given question we have provided that :

[tex]\purple\star[/tex] Base = 15 m[tex]\purple\star[/tex] Height = 13 m

Here's the required formula to find the area of parallelogram :

[tex]\longrightarrow{\pmb{\sf{A = B \times H}}}[/tex]

[tex]\pink\star[/tex] A = Area [tex]\pink\star[/tex] B = Base[tex]\pink\star[/tex] H = Height

Substituting all the given values in the formula to find the area of parallelogram :

[tex]\longrightarrow{\sf{A = B \times H}}[/tex]

[tex]\longrightarrow{\sf{A = 15 \times 13}}[/tex]

[tex]\longrightarrow{\sf{A = 195}}[/tex]

[tex]\star{\underline{\boxed{\sf{\red{A = 195 \: {m}^{2}}}}}}[/tex]

Hence, the area of parallelogram is 195 m².

[tex]\rule{300}{2.5}[/tex]

PLEASEEE HELP MEEE!!!!!

Answers

Answer:

I think that it is B

Step-by-step explanation:

Answer:

it is C

Step-by-step explanation:

I cant explain it but if you know what your doing and how to do it you will figure it out and try and retrace your steps

(a)Find the greatest common factor (GCF) of 36 and 9.

(b)Use the GCF to factor 36 -9.

Answers

Answer:GCF of 36 and 9 is 9

Factor 36-9 = 9(4-1)

Step-by-step explanation: 36 and 9 are both multiples of 9

Solve -2/3-x > 8 or -2/3-x < 4

Answers

Answer:

x=<_26/3

OR

x=>_14/3

Add them together and divide

9. Select the proper order from least to greatest for 2/3, 7,48,%20-
O A.48,23,910,76
O B.23,910,76,48.
O c.48,910,76,33
OD.7.%10,43,48

Answers

Answer:

Step-by-step explanation:

Great job and good luck :)

Maribel is offered a job as a paralegal at an annual base salary of $47,000. In addition, the company will pay the following benefits: a retirement contribution that is 10.5% of Maribel’s base salary, disability insurance totaling $338, medical insurance totaling $6,500, and a year-end bonus of 17% of her base salary. What is the annual value of this job to Maribel?

Answers

Answer:

66763

Step-by-step explanation:

47000*(1+0.105+0.17)+338+6500

Please help important

Answers

d. 7/10 of newspapers and a. 1/8 pound

Slove for x. Round to the nearest tenth if necessary

Answers

Your answer would be x = 9.4

I hope this helps you :)

A real estate agent earns a 6% commission for the sale of a home. A home sold for $350,000. What was the commission earned by the agent? $210 $2100 $21,000 $210,000.

Answers

Answer:21,000

Step-by-step explanation:

350,000 ×6/100 = 350,000×0.00.06 =21,000

The commission earned by the agent is $21,000 which is the 6% of the total selling price.

What is meant by Percentage?

Percentage is defined as the parts of a number per fraction of 100.  So the percentage actually means a part per 100.

Percentage is usually denoted by the symbol '%'.

We have to divide a number with it's whole and then multiply with 100 to calculate the percentage of any number.

Given that,

Price for which the home is sold = $350,000

Percentage as commission earned by real estate agent = 6%

Amount of commission = 6% of $350,000

                                       = 6% × 350,000

                                       = (6/100) × 350,000

                                       = 0.06 × 350,000

                                       = $21,000

Hence the commission earned by the real estate agent is $21,000.

To solve more problems about Percentage, click here :

https://brainly.com/question/30278178

#SPJ2

15 The price of a sweater was reduced from $20 to $12. By what percentage was the price of the sweater reduced? A 8% B 80% C 60% D 40%​

Answers

Answer:

60%

Step-by-step explanation:

Put the percentages into decimal form and multiply by the 20. When you do this to the 60%, you get what they say the final total is, 12

Answer:

Step-by-step explanation:

the mismimostt plain and simple answer is that it's 60%

hope this helps :)

Find equivalent expressions for 2y + 7 - 5y + 6y - 3+ y.

Answers

the answer is 4y + 4 or 4 • (y+1)

Please help me with this

Answers

Answer:

I think -1 cuz 2+1--1 so yh I guess

What is the genetic material (DNA and proteins) found in the nucleus called?
atoms
chromosomes
molecules
nucleolus

Answers

2) chromosomes

Step-by-step explanation:

"In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes" explanation from g.

Write an exponential function to represent a person consuming a bag of candy in which the initial value in an is 175 pieces and the rate of decay is 20%.

Answers

We will see that the exponential decay function is:

f(x) = 175*(0.8)^x

How to find the exponential decay?

The general exponential decay is:

f(x) = A*(1- r)^x

Where:

A is the initial value.r is the rate of decay in decimal form.x is the variable, in this case is the time.

Here we know that the initial value is 175, and the rate of decay is 20%. To get this in decimal form, we just divide it by 100%.

20%/100%  = 0.2

Replacing that in the exponential function, we get:

f(x) = 175*(1 - 0.2)^x

f(x) = 175*(0.8)^x

If you want to learn more about exponential functions, you can read:

https://brainly.com/question/11464095

What is the volume of a cube with 1/2 inch sides?
Please Help !

Answers

Answer:

1/8 inches

Step-by-step explanation:

to find this out you must multiply all the sides by each other

1/2 * 1/2 * 1/2

this equals 1/8

HEHE SORRY BUT PLEASE! the sum of A plus B equals 15. if B = 9, which equation can be used to find the value of A?​

Answers

Answer:

A + 9 = 15

Step-by-step explanation:

given:

A + B = 15

if B is given 9, put it into the equation.

A + B = 15

A + 9 = 15

A = 15 - 9

A = 6

Solve:
Analee, Natalie, Connor, and Patrick placed 1st, 2nd, 3rd, and 4th in a pie-eating contest. their last names are Adams, Baker, Coaster, and Davis, find out each person's full name and place in the contest.

1. Baker said that she would have placed higher if she didn't have to eat blueberry pie.
2. Patrick ranked higher than Davis but lower than Natalie.
3. Coaster's father was proud of her for eating so much pie.
4. Analee ranked lower than Adams.
5. Connor did not come in 3rd.

Answers

The correct order and names are 1. Natalia Coaster, 2. Patrick Adams, 3. Analee Baker, 4. Connor Davis.

How to find the correct order?

The best strategy is to read one by one the clues and determine possible order and names.

1. Statements 1 and 3 show Baker and Coaster are girls; therefore, Adams and Davis are boys.

2. Statement 2 shows the order is: Natalie - Patrick - DavisSince Davis is a boy we can conclude he is Connor Davis and Patrick's last name is Adams.

3. Statements 4 and 5 show Analee was the third one because otherwise Connor would be the third one and this is not true. The order is:Natalie - Patrick - Analee - Davis

4. Natalie's last name is Coaster because Coaster was the girl who ate a lot of pie, while Analee did not. This means the answer is:Natalia Coaster.Patrick Adams.Analee Baker.Connor Davis.

Learn more about clues in: https://brainly.com/question/18250989

n the rhombus m ∠ 1 = 160 ° . What are m ∠ 2 and m ∠ 3 ? The diagram is not drawn to scale

Answers

Answer:

∠ 2 = 160° , ∠ 3 = 10°

Step-by-step explanation:

The opposite angles of a rhombus are congruent , then

∠ 2 = ∠ 1 = 160°

The triangle has 2 congruent sides and is isosceles with base angles being congruent , then

∠ 3 = [tex]\frac{180-160}{2}[/tex] = [tex]\frac{20}{2}[/tex] = 10°

Answer:

m∠3 = 10° || m∠2 = 160°

Step-by-step explanation:

if  m∠1 =  160°

then m∠2 = 160°

The triangle is isosceles.

therefore

m∠3 + m∠3 + 160° = 180°

2 m∠3 = 180° - 160°

2 m∠3 = 20°

m∠3 = 10°

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