Mathematics Middle School

The flywheel on a steam engine rotates 60 revolutions every 15 seconds.
​ What is the flywheel’s rate of revolutions per second? ( can somebody tell me what the unit rate and the rate unit is)

Answers

Answer 1

Answer:

4 revolutions per second

Step-by-step explanation:

Sorry thats all I know.

Related Questions

A number cube labeled 1–6 is rolled and a letter is selected from the word MATH. Determine the probability. Write it as a fraction in simplest form.

Answers

Answer:

1/4

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

got it right on test

A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 135 of a gallon of gas to go 1 mile. How much gas does it use to go 100 miles?

Answers

2.86 gallons

Step-by-step explanation:

If 1/35 gallon of gas = 1 mile

To travel 100 miles,

1/35 * 100

= 0.0286 * 100

= 2.86 gallons

Therefore, the car needs 2.86 gallons of gas to travel 100 miles

2.86 gallons is the answer

Would anyone be willing to do an assignment for me? I know a few answers already cause my teacher gave them to us but im really bad at math and my assignment is late. Anyone? Please!

Answers

Answer:

where are the questions??

Step-by-step explanation:

Answer:

$55

Step-by-step explanation:

I'm not super sure with this answer, but I got it by adding 10% of 50, to 50.

I NEED HELP. WILL GIVE BRAINLIEST !!

Answers

Answer:

The answer is the third option and the last option

Step-by-step explanation:

This is because these are the only two answers you will need to use proportional relationships on. Need to find the y. Did this help? If so, it would be nice to have brainliest.

The third option and the last option!!!

The equation x · y = z could be true or false.
If X is 3, Y is 4, and Z is 12 is the equation true or false?
Find new values of X, Y, and Z that make the equation true.
Find new values of X, Y, and Z that make the equation false

Answers

Answer: TRUE

Step-by-step explanation:

3 x 4 = 12.

Look at the picture and answer the question: What is the length of QS?

Answers

Step-by-step explanation:

firstly draw the triangle and label it. (you will find the picture down)

Now this remind us with the cosine rule. (you will find the picture down)

This rule says that the square of the given length of the side of a triangle is equal to the sum of the squares of the length of other sides minus twice their product and multiplied by the cosine of their included angle.

So using that rule we can say that:

[tex]QS^{2}[/tex] = [tex]QR^{2} +SR^{2} - 2(QR)(SR)(cosR)[/tex]

square root both sides, so you will have QS alone in one side.

QS = [tex]\sqrt{ [QR^{2} +SR^{2} - 2(QR)(SR)(cosR)]}[/tex]

plug in the values we have and y=this will yield:

QS = [tex]\sqrt{ [11^{2} +16^{2} - 2(11)(16)(cos38)] }[/tex] = 9.98099267 = 10

Which equation can be used to solve the problem?

75 percent of what number is 150?
StartFraction 75 times 1 Over 150 times 1 EndFraction = StartFraction 75 Over 150 EndFraction
StartFraction 150 times 2 Over 75 times 2 EndFraction = StartFraction 300 Over 150 EndFraction
StartFraction 200 times 2 Over 75 times 2 EndFraction = StartFraction 400 Over 150 EndFraction
StartFraction 75 times 2 Over 100 times 2 EndFraction = StartFraction 150 Over 200 EndFraction

Answers

Answer:

200

Step-by-step explanation:

multiplying both sides by 100 and dividing both sides by 75, we have

X = 150 x 100/75

X = 200

Machine A makes 12.75 ounces of popcorn in 3 minutes. Machine B makes 18 ounces of popcorn in 4 minutes.
If each machine makes popcorn for 10 minutes, will there be enough popcorn for eight 9-ounce bags? Explain.

Answers

Answer:

yes if each machine makes popcorn for 10 minutes, there be enough popcorn for eight 9-ounce bags

Step-by-step explanation:

yes because 12.74 x 3.3 = 42.075 and 18 x 2.5 = 45 and when you add those together you get 87. Also 8  9-ounce bags = 72 and that is less then what you have.

Answer:

Yes there will be enough popcorn for eight 9-ounce bags.

Step-by-step explanation:

" eight 9-ounce bags"

Basically

"72 ounces"

"12.75 ounces of popcorn in 3 minutes"

Basically

We need to find out how much popcorn we can make in "One Minute"

12.75÷3=4.25

Now we need to find out how much it can make in "Ten Minutes"

4.25×10=42.5

"18 ounces of popcorn in 4 minutes."

Basically:

We wanna find out how much it can make in "One Minute"

18÷4=4.5

"makes popcorn for 10 minutes"

Basically:

We need to find out how much popcorn it can make in "Ten Minutes"

4.5×10=45

Add (45) and (42.5)

45+42.5=87.5

So yes,there will be enough popcorn for eight 9-ounce bangs due to the fact A and B makes (87.5) ounces of popcorn and thats greater than (72) ounces.

Answer option C is correct.

The system of equations relates the distance, y,
from a station of two trains and the speed, x, at which they are moving.
y + 10x = 250
2.5y = -25x + 625
a. What does the system of equations tell you about the speed
of the trains?
b. What does the solution tell about the locations of the trains if they
left the station at the same time? If they left at different times?

Answers

Answer:

a . It is a simultaneous speed.

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answers

Answer:

B I finished that test and got an 100

What is the least common multiple of 18, 36 and 45?

Answers

Answer:9

Step-by-step explanation:

Plssss HELP MEEEEE ITS THE LAST QUESTION ITS LITERALLY PAST DUEEE

(And the answer I put in was me pls tell me it’s correct or not)

Answers

Answer:

Betty will need 34 jars in total to hold all the pears and apples.

Step-by-step explanation:

Betty will need 13 jars for the pears, using division.

104/8 = 13

Same method for the apples.

126/6 = 21

21 + 13 = 34

Total = 34

Select the pair(s) of ratios that form a proportion. This is a test and I really need answers.

3/11, 15/33
42/18, 7/3
14/36, 2/5
22/6, 33/9

Answers

Answer:

3/11, 15/33 I think

Step-by-step explanation:

What is the area of this triangle in the coordinate plane?

Answers

Answer:

6 units

Step-by-step explanation:

Step-by-step explanation:

area of triangle = 1/2 × 4 × 3 = 6 units .

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you.

WILL MARK BRAINLIEST what is the height of the seagull?

Answers

Answer:

Where is the area of the whole triangle tho-

Step-by-step explanation:

IF YOU HELP ME I WILL GIVE YOU BRAINIEST

Answers

he used the wrong sign. it should be the less than it equal to sign. 6g-10>_35

Imma just do it again cause why not lol

also please help, this is my last question and I'm kinda overwhelmed.

also have some art, Grubhub themselves made.

Answers

Answer:

$9000

__________

!!!!!!!HELP PLS!!!!!!

Answers

Answer:[tex]\boxed{\boxed{\sf{The~first~step~is~divide~both~sides~by~3.}}}[/tex]Solution Steps:

______________________________

1.) Divide both sides by 3:[tex]3[/tex] ÷ [tex]3=[/tex] Cancels Out[tex]12[/tex] ÷ [tex]3=4[/tex]2.) Subtract 2 from both sides:[tex]2-2=[/tex] Cancels Out[tex]4-2=2[/tex]

So your answer is [tex]\bold{x=2}[/tex].

______________________________

It’s the first one or 2

pls help this is really complicated for my brain so if anyone knows how to do backtracking and undoing any help is accepted!!!

Answers

Answer:

2.73     8.75

Step-by-step explanation:

n = 1  

1 (DOUBLE) = 1+1 = 2  

2 +3/4 = 1.5

1.5 +2 = 3.5  

3.5 x 0.22 = 0.77

3.5 - 0.77 = 2.73

n = 1

1 + 3/4 = 1 + 0.75 = 1.75

1.75 (DOUBLE) = 3.5

3.5 x 2 1/2 = 8.75

2.72 8.75 good luck :)))

read the instructions on the picture.

Answers

Answer:

1. y = 27 / 3

2. x = 4 - 3

3. p = 17 - 8

4. q = 14 *2

5. x= 24/2

6. x=20/3

Step-by-step explanation:

HELP ME PLEASEEEE!!!! 30 points!!!!

Okay, I missed school because I was quarantined even though the person ended up not have the corona and now I have this work that I don't know :(
Will, someone walks me through this or help me?

Answers

The time is more as the more distance is travelled

y=x^2- x + 2, y = x + 5
Solve by substitution
I need the work shown please

Answers

Here you are . i think thais is the asnwer

Don't do for points.

Don't get your account banned.

Don't be me

Answers

the last option 9,000
9000 nsnsbjsisnssvusjsbsbshsn

Jose graphed the opposite of the opposite of 3 on the number line.
First, he graphed point Pon the number line 3 units to the right of zero.
Next, he graphed the opposite of Pon the number line 3 units to the left of
zero and labeled it K. Finally, he graphed the opposite of K and labeled it
K
0
Is his diagram correct? Explain. If the diagram is not correct, explain his error, and correctly locate and labe
point Q.

Answers

Answer:

his answer is correct, the opposite of opposite of a number is always going to be the same number.

hope dis helps ^-^

State how many solutions each equation has. (Will mark brainlest)

2z - 6 = 2(z + 2) - 10

Answers

I’m pretty sure the answer is no solution.

Answer:

There no solution or 0

MK SO WHAT...
write a list of steps that are needed to find the measure of ∠B.

Answers

it’s subtraction, so you must subratct 113 by 72, then your answer will be B= 41

so you start with taking 180-113 because that straight line is made up of 2 angles that equal 180, you’ll get 67 then the three angles of a triangle will add up to 180 so you’ll do 67+72=139 and subtract that from 180 to find your missing angle which is 180-139=41 so

The graphs show the amounts in two different bank accounts over several months.

Explain whether Account A shows a proportional relationship between months and the amount in the account.
Explain whether Account B shows a proportional relationship between months and the amount in the account.
Analyze the graph that shows a proportional relationship. Explain the meaning of the points ( x, y) and ( 1, r) where is the unit rate.

Answers

Answer: What

Step-by-step explanation:

please help i will give brainliest

Answers

Answer:

4 students scored 43 points.

Step-by-step explanation:

Answer: 4 students scored 43 points

help plssssssssss i need some help

Answers

Answer:

it is a+2b, the one you have selected.

Step-by-step explanation:

I believe the answer is a+2b

step by step explanation thanks

Answers

Answer:

C= 7y +150

850

250

Step-by-step explanation:

The cost is 7 times y, the number of yearbooks, plus 150, the upfront cost.

7 times 100 is 700, plus 150 is 850.

1900-150 is 1750 divided by 7 is 250

Answer:

c

Step-by-step explanation:

Other Questions
A store sells graph paper in packages of 100 sheets. During a sale, they offer a package that has 25% more sheets for no additional cost. How many sheets are in the sale package? inventa una novela gtica sobre un tema de tu predileccin porfa ayuda :c Read the short story. Noah spent three weeks working on his model of the Golden Gate Bridge. He designed it himself and built it completely out of toothpicks for the sixth-grade science fair. The purpose of Noah's project is to demonstrate how proper design is the key to the strength of a structure. Which conclusion would readers find most satisfying? An interested student decides to see how much weight Noah's bridge will hold. She places a pile of books on it, and it smashes to pieces. Noah wins a blue ribbon and gets his picture in the local newspaper. The headline reads, "Student's Model Holds Up to 'Pressure' of the Judges." Because he could not get away from the office, Noah's father is unable to deliver Noah's model to the school in time for judging. Noah's entry is marked as "Not Judged." Although the judges seem impressed with Noah's model, it does not earn a ribbon. Noah becomes very upset and regrets putting so much work into the science fair. I don't have time pls help pls pls pls plsEvaluate the expression for x = 9.7x = Whats the definition of endangered and threatened in bbbbbbbkc. In own words Is -2 a whole number Starbridge Elementary raised $27,482 at its yearly Fall Festival. The money raised will be distributed evenly among 14 different classrooms. Howmuch money, in dollars, will each classroom receive? Find the circumference of the circle. answers please, asap!! Evaluate the expression 4x+3-x forx=8PLEASE HELP ME! The account title are: No journal entry required, cash, accounts receivable, office supplies, prepaid rent, prepaid insurance, office equipment, accumulated depreciation - office equipment, accounts payable, notes payable, unearned revenue, common stock, dividends, services revenue, utilities expense.Please help me What are three ways that the New Deal impacted the United States politically?1.2.3. a country in East Asia that was hailed as one of the industrial giant of the world which bicondtonal is not a good definition HELP ME BRUUHH STOP SCROLLING THROUGH MY QUESTION IM GOING THROGUH A CRISIs Helping me would be very appreciated. answer for brainlist Will mark Brainliest it's due TODAY PLEASE HELP ME Explain how UY Scuti and J0523 are different.Why will J1311 (the Black Widow Pulsar) eventually find itself without its companion star? How will this happen?How did scientists determine SM0313 is the oldest star ever discovered?What characteristics of HV2112 make it the best candidate to be classified as a Thorne-Zytkow object?How does a star's mass determine its lifespan?Discuss the characteristics of cool red dwarf stars, including their mass and age.Discuss the correlation or connection between stars with a higher mass and the amount of fuel they have to work with.How old is the sun and since its birth, how has the sun changed?During its lifespan, what characteristics of the sun will change? Many popular brands of toothpaste contain about 1.00 mg of fluoride per gram of toothpaste. The fluoride compound that is most often used in toothpaste is sodium fluoride, NaF, which is 45% fluoride by mass. How many milligrams of NaF are in a 250.0 g tube of toothpaste Even children can be harmed by TV shows and movies that make lifeseem unrealistically perfect. In one survey, published by Parents Today,children were asked about their own lives both before and afterwatching three episodes of Ronald!, a show featuring an 11-year-oldboy who flies his own helicopter to school and lives in a bedroom thatis also a skateboard park. Although they reported that they enjoyed theshow, the children, ages 8-13, ranked their own lives as less cool, fun,and interesting after watching the episodes. On the other hand,children who watched shows without unrealistically perfect characters- including T and the Rexes, a cartoon series about dinosaurs, andLittleton Street, a realistic program about a group of neighborhoodfriends - did not report any decrease in happiness with their own lives.Where in an argumentative