Mathematics College

Help 6th grade math thanks

Help 6th Grade Math Thanks

Answers

Answer 1
I think 8.75, but math is like my worst subject so if I got it wrong tell me:)

Related Questions

. In the formula I=P·r·t, what does I stand for?

Answers

Answer:

I stand for simple interest.

p stands for principal amount

R Stands for Rate of interest

T stands for Time

This is the formula for simple interest.

NEED THIS ASAP PLEASE

Answers

Answer:

50

Step-by-step explanation:

(c−9)2−(4c−2)2 factor

Answers

Answer:

−2(3c  +  7)

Step-by-step explanation:

Factor the polyomial

Solve the system using substitution.
X + 5y = 0
3y + 2x = -21
([?], 1)

Answers

Answer:

(-15, 3)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

x + 5y = 0

3y + 2x = -21

Step 2: Rewrite Systems

x + 5y = 0

Subtract 5y on both sides:          x = -5y

Step 3: Redefine Systems

x = -5y

3y + 2x = -21

Step 4: Solve for y

Substitution

Substitute in x:                     3y + 2(-5y) = -21Multiply:                                3y - 10y = -21Combine like terms:             -7y = -21Isolate y:                                y = 3

Step 5: Solve for x

Define equation:                    x + 5y = 0Substitute in y:                       x + 5(3) = 0Multiply:                                  x + 15 = 0Isolate x:                                 x = -15

5
Jody has 3 red marbles, 5 blue marbles, and 8 yellow marbles. What is the ratio of red marbles to blue marbles?

Answers

Answer:

3:5

Step-by-step explanation:

There are 3 red marbles

5 blue marbles

SO

3:5

Answer:  3:5

Step-by-step explanation:

There are 3 red marbles and 5 blues marbles so the ratio of red marbles to blue marbles will be     3:5   or  3 to 5,  or 3/5

Complete this division sentence.
763 + 23 =
r

Answers

Answer:

is it a division or addition

Step-by-step explanation:

for me the answer is 786

The answer is 33 because you have to reduce the expression, if possible, by cancelling the common factors.

which list orders the number from least to greatest​

Answers

Answer:

Option C

-5, -2, 1, 3

Step-by-step explanation:

to get the list that orders the numbers from the least to the greatest, we need to, first of all, know the smallest and the largest numbers.

The largest number is easy to guess - it is undoubtedly 3.

However, the smallest number may be a bit tricky because we are dealing with negative numbers. When dealing with negative numbers, the numbers with greater magnitudes are actually smaller. This means that -5 is less than -3, which is less than -2, and so on.

Coming back to our question, we can now order the numbers as -5, -2, 1, 3 which is option C

(66 POINTS)

Lara is trying to solve a puzzle where she has to figure out two numbers, x and y. Five times x is greater than or equal to 3 more than y. Also, 1 more than 4 times y is greater than twice x. Which graph represents the possible solutions?

Answers

Answer: number -5,4

Step-by-step explanation:

Find the distance between the points (2.8) and (54).​

Answers

Answer:

It's 51.2

Step-by-step explanation:

All u gotta do is subtract  54 - 2.8

Mallie's car dealership expects to sell 18 cars every 6 days. Based on this information, how many days does the dealership expect that it will take to sell 90 cars

Answers

Answer:

30 days

Step-by-step explanation:

1 way:

18 cars/6 days = 3 cars/1 day

90cars/3 cars a day= 30 days

another way:

90 cars/18 cars= 5

6 days * 5= 30 days

Convert the following repeating decimal into a fraction. *
0.497

Answers

Answer:

497/1000

Step-by-step explanation:

sorry but that's as simplified as it gets

g When comparing the 90 percent prediction and confidence intervals for a given regression analysis Multiple Choice the prediction interval is narrower than the confidence interval. the prediction interval is wider than the confidence interval. there is no difference between the size of the prediction and confidence intervals. no generalization is possible about their comparative width.

Answers

Answer:

the prediction interval is wider than the confidence interval

Step-by-step explanation:

Given that the confidence intervals depicts how a researcher got its parameter of interest, for example, regression coefficient, and prediction intervals show the researcher where to find the subsequent sampled data.

Therefore, Prediction intervals must cater to the uncertainty in estimating the population mean, and the random variation of the individual values.

Hence, when comparing the 90 percent prediction and confidence intervals for given regression analysis, a prediction interval is invariably wider than a confidence interval.

This explains the fact that the prediction interval will not collapse to a single value as the sample size rises.

Josh is comparing the volume of a cylinder and steer. The cylinder has a high of 8 inches and radius of 6 inches. This sphere has a radius 6 6 inches. What is the van of the cylinder and spare in terms of pie

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Answer:Has a diamanitor of 6). B.)9 pi square units ... What is the volume, to the nearest whole cubic inch, of a cylinder with a height ... Volume of Cylinders, Cones, and Spheres Assig…

Step-by-step explanation:

The American College Testing Corporation has a test called the ACT that is used for admissions to college. The American College Testing Corporation reports that students who attend 2-year colleges in the Midwest United States have an average ACT score of 21.5, with a standard deviation of 3.17. The president of the Minneapolis Community College wonders if students who attend her college have a ACT scores that are significantly different from the ACT scores reported by the American College Teaching Corporation. The president would perform a ___________ test, and use a z-critical value of _____.

Answers

Answer:

Two tailed test

+/-1.96

Step-by-step explanation:

Following this claim, the president would have to perform a two tailed test. Since he wants to know if the Act scores of students in her school are significantly different from what is reported by the ACT corporation.

At a confidence level that is 95%, the level of significance is = 0.05. then the z critical value to be used would be +/- 1.96

What is the first step in the decision-making process, and why is it important?

Answers

The first step in making the right decision is recognizing the problem or opportunity and deciding to address it. Determine why this decision will make a difference to your customers or fellow employees.

Answer:

Recognizing the problem or opportunity and deciding to address it.

edge ⬇️

How do you solve these? I guess I have to find how much they are in percents

Answers

Answer

1) 2500 %

2) 1800%

3) 3500%

Step-by-step explanation:Convert the decimal to a percentage by multiplying the decimal by  100  .

help please, i will love you forever

Answers

Answer:

See Below

Step-by-step explanation:

I'm not going to do the homework for you, but I will complete three of the problems to help you understand the process.

We are converting between different units of measurement.

Here are the conversions to know:

12 inches = 1 foot

3 feet = 1 yard

1760 yard = 1 mile

5280 feet = 1 mile

#1

We need to convert 7 feet into inches.

7 feet * 12 inches per foot = 84 inches

Now we know:

84 inches = 7 feet

What's the difference is between 84 inches, and 18 inches?

84 inches - 18 inches = 66 inches

We need 66 more inches to get a length of 7 feet.

#2

We need to convert 2 miles into yards.

2 miles * 1760 yards per mile = 3520 yards.

Now we know:

3520 yards = 2 miles

What's the difference between 3520 yards and 2000 yards?

3520 yards - 2000 yards = 1520 yards

We need 1520 more yards to make 2 miles

#3

We need to convert 108 inches into feet.

108 inches / 12 inches per foot = 9 feet

Since there is no remainder,

9 feet = 108 inches.

Hopefully you can see what is going on here and do the rest yourself.

Find the slope of the line through each pair of points. (-20,-4), (-12, -10)

Answers

Answer:

-0.75 i think

Step-by-step explanati

please help me with all​

Answers

Answer:

Part A.  Mike will save $1650 if he saves $150 for 11 months.

Part B.  Since $1750-$150 = $1600 Mike will need to save $100 in the 12th month. Since $100 is less than $150, he will be able to reach his goal.

Part C.   If Mike saves $160 every month for 12 months, he will have saved $1920.

What is (-24)+(-36)+(-12)
(Simplify the following )

Please help me.. if I fail I’ll get kicked from school

Answers

(-24)+(-36)+(-12)

-24-36-12

-72
The answer would be
(-24)+(-36)+
-24-36-12
-72

A food manufacturer uses an extruder (a machine that produces bite-size cookies and snack food) that yields revenue for the firm at a rate of $200 per hour when in operation. However, the extruder breaks down an average of two times every day it operates. If Y denotes the number of breakdowns per day, and suppose Y follows a Poisson distribution. The daily revenue generated by the machine is R=1600−50Y^2. Find the expected daily revenue for the extruder.

Answers

Answer:

$1300

Step-by-step explanation:

λ = average = 2 per day, Y denotes the number of breakdowns per day,

But E(Y) = λ, E[Y(Y - 1)] = λ²

E(Y²) = E[Y(Y - 1)] + E(Y), hence:

E(Y²) = λ² + λ

The daily revenue is R=1600−50Y². The expected daily revenue for the extruder E(R) is:

E(R) = E(1600−50Y²) = 1600 - 50E(Y²)

E(R) = 1600 - 50(λ² + λ)

Substituting:

E(R) = 1600 - 50(2² + 2)

E(R) = 1600 - 300 = 1300

E(R) = $1300

Which expression is equivalent to 6-(-8)?
-6+8
-6+(-3)
6+(-8)
6 + 8

Answers

Answer:

6+8 becuase -(-8) = +8

Step-by-step explanation:

Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared.
c2+2c

Answers

Answer:

Step-by-step explanation:

c2+2c+4

(c+2)^2

^ is the exponent

I need help plz, ASAP

Answers

Answer for #5:

L=2,6,f=-2,6 ,m=3,1 ,g=-3,1 ,n=6,3 ,h=-6,3

Answer:

b

Step-by-step explanation:

On a piece of paper, graph this system of inequalities. Then determine which
region contains the solution to the system.

Answers

Answer:

B.Reigion D

Step-by-step explanation:

Answer:

Region B

Step-by-step explanation:

Cause i just know

if it costs $55 for 20 people to go rent a movie at red box how much does it cost per person?​

Answers

55/20 = 2.75
It costs $2.75 per person

An accident in a laboratory results in a room being contaminated by a radioisotope with a half-life of 8 days. If the radiation is measured to be eight times the maximum permissible level, how much time must elapse before the room is safe to enter?

Answers

Answer:

24 days

Step-by-step explanation:

Let the permissible time be Ro

Let the initial activity be R= 8Ro

From;

0.693/t1/2 × t= 2.303 log R/Ro

Half life of the radionuclide= t1/2 = 8 days.

Hence;

0.693/8 × t = 2.303 log 8

t= 2.1/0.087

t= 24 days

NEED HELP ASAP NOW OR I DIE. -9 to the 28th power as a positive or negative explain​

Answers

Answer:

Positive.

Step-by-step explanation:

Negative to a even power becomes positive

NUMBER 6 ONLY. Please help. Only if you are SURE

Answers

Answer:

I think it should be zero

What fraction are equivalent to 5/20?

Answers

1/4, 10/40 & 25/100

Answer:

A. 4/16, because 5/20 = 1/4 and 1/4 = 4/16

Step-by-step explanation:

If u r talking about edge then this is correct, hope this helps :)

Other Questions
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Maryland? a. it helped local government use direct democracy b. it denied states the right to control local governments c. it supported the strength of local governments over statesd. it legitimized the power of the national government over states e. it showed how the national governments power needs to be checked How did the Jewish people view their religious practices during the Babylonian Captivity In an attempt to use _________ to convince people to stop smoking, government officials have proposed removing all brand identification from packs of cigarettes, replacing it with graphic images of damaged lungs and cancerous mouths. *(I WILL GIVE BRAINIEST TO RIGHT ANSWER)* The diagram below shows a portion of the concept map for the rock cycle: The praying mantis is a member of the Mantid group of insects. Mantids come in many shapes and sizes and are found all over the world. Some have patterns on their bodies that help them look like the ground. Some are bright green to blend in with leaves and plants. One special mantis is bright pink and looks like an orchid. The mantis is such a strange and engaging creature that many people keep them as pets, For many reasons, mantids have fascinated humans for many years. First, mantids show an amazing mastery of hunting skills. Mantids eat a wide variety of Insects, including moths, crickets, bees, flies, grasshoppers, other mantids, and even, on occasion, small birds and snakes. They can capture prey many times larger than they are. Their powerful armor and amazing hunting skills make them quite effective. They have large powerful front legs, with spikes that help them hold on to prey. Their head can turn almost entirely around to follow prey without moving. Their front legs are so powerful and so fast that it is hard to see them move when capturing prey. One second their legs are empty and the next they are clutching tightly to something they have caught Mantids are also stealthy. They walt, very still, very patiently for prey to come into sight. They also make slight swaying movements, to mimic leaves and grass moved by the wind. They focus intently on their victim. Then they pounce, suddenly, rarely missing their target. They are so successful they can triple in size every few months by molting when they outgrow their exoskeletons. They start out as nymphs, able to capture only prey that is smaller than they are. They end their lives about a year later becoming predators that can take down prey as large as hummingbirds. Finally, they are very personable, as far as insects go. They have a large, triangular shaped head with large eyes. This alien-like appearance makes them quite cute. When you come across them in the garden, you can tell right away they are aware of you. They follow your movements as if to assess if you are either something to eat or something that will eat them. The little ones will accept rides on your finger if you are gentle, But be careful-they can jump surprisingly for even when small. If they think your freckle is prey, you may be surprised to find a mantis on your nose. As far as predatory Insects go, the mantis is one of the most impressive. Gardeners love to find them in on vegetables because mantids eat many insects that damage crops. However, they may also eat some insects that help a gardener like bees. Regardless, the mantis is a fascinating insect, and if you happen to see one hunting in the wild, consider yourself lucky. Which word from the text describes the mantis when hunting? (4 points) Clutching b Powerful Personable Od Surprised A cone has a diameter of 4 inches and a height of 7 inches. Find the volumeof the cone. Use 3.14 for II.Volume of a cone: II rh177.2 in.29.3 in.3351.7 in.87.9 in. Which statement is FALSE? 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