A car travels at a constant speed of 45 km per hour for 5 min each wheel has a radius of 25 centimeters calculate the number of complete revolutions that the wheel makes in 5 min

Answers

Answer 1

Answer:

477.47 revolutions

Step-by-step explanation:

From the information given:

The formula for calculating the circumference = 2π r

Given that the radius of each wheel = 25 centimeter

Then, the circumference = 2 π (25)

= 50π cm

The distance traveled in 5 minutes is as follows:

Given that:

The speed = 45 km/ hour

i.e.

1 hour = 45 km

In an hour, we have 60 minutes

So, 60 minutes = 45 km

1 minute = 45/60 = 0.75 km

To cm;

0.75 km = (0.75 × 1000) m = 750 m

750 m = 750 × 100 = 75,000 cm

The number of revolution in 5 minutes sInce 1 revolution =  50π cm is:

=  75,000 cm/ 50π cm

= 477.47 revolutions in 5 minutes


Related Questions

The Bailey’s spent $18.00 for 4 two-liter sodas for the birthday party this weekend. What is the number of soda bottles that could be bought for $45.00?

Answers

Answer:

10

Step-by-step explanation:

So I belive the answer consists of- 18 divided by 4 equals 4.5 and 45 divided by 4.5 is 10 so ten should be your answer.

Victoria buys 5 scarves for a total of 36.25. If each scarf costs the same amount of money, how much did one scarf cost?

Answers

Answer:

7.25

Step-by-step explanation:

36.25/5=7.25 simple

Step-by-step explanation:

cost of 5 scarf = 36.25

cost of one scarf = 36.25/5

= 725/100

= 7.25 $

so one scarf cost = 7.25$

plz mark my answer as brainlist plzzzz vote me also and hope this helps you ...

What is the sign of \dfrac bc c b ​ start fraction, b, divided by, c, end fraction? Choose 1 answer: Choose 1 answer: (Choice A) A Positive (Choice B) B Negative (Choice C) C Zero

Answers

Answer:

A Positive

Step-by-step explanation:

If we input the fraction given to us by using the text editor, we have:

\dfrac{b}{c}

OUTPUT:

[tex]\dfrac{b}{c}[/tex]

The sign before that fraction term is known as positive.

Answer:

a. postive

Step-by-step explanation:

PLEASE ILL GIVE 40 POINTS!!! How do the magnetic and electrical components of electromagnetic waves travel in relation to each other?

at right angles
toward each other
in a circular motion
parallel to each other

Answers

Answer:

im pretty sure it's right angles

Step-by-step explanation:

Answer:

they travel at right angles to each other in a bundle of light energy called a photon.. (probably, not sure)

the price of a calculater has decreased from $200 to $150. What is the percentage of decrease?

Answers

Answer:

25%

Step-by-step explanation:

200-150=50

50/200=0.25

have a nice day!

Please helppppp !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!

Answers

Answer:

BH = 16

Step-by-step explanation:

The centroid theorem states that the centroid of a triangle is 2/3 of the distance from a vertex to the midpoint of the opposite side.

That means that BH is 2/3 of the length BF.

BH = (2/3)(BF)

BH = (2/3)(24)

BH = 16

help me i have a c i rlly need it lol

Answers

Answer:

#5, #1, #2, #4, #3

They are always positive soo you just order them without the negatives

6
[tex] \frac{?}{?} [/tex]
m+4=1½​

Answers

Answer:

i don't get the question ...

Step-by-step explanation:

What is the value of the Square Root of 625?

Answers

Answer:

25

Step-by-step explanation:

By prime factorisation, we get:

5 | 625

5 | 125

5 | 25

5 | 5

| 1

. So the prime factors are:

625 = 5 x 5 x 5 x 5

625 = 25 x 25

√625 = 25

A chef bought 3 bags of beans. Each bag contains 1.5 kilograms of beans. How many kilograms of beans did she buy?

Answers

Answer:

The chef bought 4.5 kg of beans

Step-by-step explanation:

1.5 x 3 = 4.5

4.5 kg

The scale of a map is 2/5 inches represents 3 miles. How many miles does 1 inch represent?

Answers

That would be 7.5 miles. This is because 2/5 miles is multiplied 2.5 times to get 1 inch. Therefore, we multiply 3 miles by the same number to bet 7.5 miles.

Im really confused bc ive tried everything and i cant figure this out

-3 7/10 = -3/-4y
its a rational equation

Answers

Answer:

y = - [tex]\frac{15}{74}[/tex]

Step-by-step explanation:

Given

- 3 [tex]\frac{7}{10}[/tex] = [tex]\frac{-3}{-4}[/tex] y = [tex]\frac{3}{4}[/tex] y ( change the mixed number to an improper fraction )

- [tex]\frac{37}{10}[/tex] = [tex]\frac{3}{4}[/tex] y

Multiply through by 20 ( the LCM of 10 and 4 )

- 74 = 15y ( divide both sides by 15 )

- [tex]\frac{74}{15}[/tex] = y

Please answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!

Answers

Answer:

30

Step-by-step explanation:

3 multiply 5 =15

so:

6 multiply 5=30

What is the degree of the polynomial below? it would be 4 right? hi everyone tho :)


x^3 + 2x – 3x^4 + 5 + 3x^2

Answers

Answer:

4

highest power is 4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Pls help me !!! I’ll give brainliest!!

Answers

Answer:

32

Step-by-step explanation:

please mark me as brainliest

Please help me
I dont know how to answer this question
Answer All
Fast
Correctly
(you get 5 stars, a thanks, and BRAINLIEST)

Answers

Answer:

The lines are perpendicular, meaning if they were to intersect, they would form four right angles.

solve the quadratic by factoring
4x^2-10=4x-7

Answers

Answer:

x= -1/2 or x=3/2

Step-by-step explanation:

hope this helps

Given 264 feet of fencing, write an equation that can be used to calculate the area enclosed by
the fencing

What dimensions will maximize the area enclosed by the fencing?

Answers

Answer

(264/4)x66=4356 using a square

Step-by-step explanation:

each side will have 66 feet on fenecing adding up to 264 feet. A square is the most effiecnt shape to enclose and area.

A housewife deposited Rs 10,000 on saving account at 5% p.a. interest compounded
yearly and another sum on fixed deposit account at 8% p.a. interest compounded
half yearly. After one year the interest on fixed deposit account
was Rs 152.80 more
than the interest on the saving account, find the total amount of money in her two
accounts at the end of the year.​

Answers

Answer:

Rs. 3923.08

Step-by-step explanation:

First principal invested = Rs. 10000

Interest rate = 5%

The interest is compounded yearly.

Time = 1 year

1 year compound interest is equal to simple interest.

Formula for simple interest:

[tex]SI = \dfrac{PRT}{100}[/tex]

Interest on first sum = [tex]\frac{10000\times 5\times 1}{100} = Rs\ 500[/tex]

Another sum is on fixed deposit 8% compounded half yearly.

Let the sum = Rs [tex]x[/tex]

Formula for compound interest is given as:

[tex]CI = P(1+\frac{R}{100})^T - P[/tex]

It is compounded half - yearly, therefore T = 2

[tex]CI = x (1+\frac{8}{100})^2 - x\\\Rightarrow CI = x(1.08)^2-x = 0.1664x[/tex]

As per question statement:

[tex]0.1664x - 500 = 152.80\\\Rightarrow x = \dfrac{652.80}{0.1664} = Rs\ 3823.08[/tex]

Javier and Ebony track the number of steps they walk. Javier records a walk of 6000 steps in 50 minutes. Ebony describes her step rate with the equation y=118, where y is the number of steps and x is the number of minutes she walks. This week, Javier and Ebony each walk a total of 5 hours. Who walks more steps?

Answers

Answer:

Javier walks more steps than ebony given the same minutes

Step-by-step explanation:

Javier records a walk of 6000 steps in 50 minutes.

Ebony describes her step rate with the equation y=118x

Where,

y = number of steps

x = number of minutes she walks

Javier and Ebony each walk a total of 5 hours. Who walks more steps?

5 hours = 5 × 60 minutes

= 300 minutes

Javier records a walk of 6000 steps in 50 minutes.

6000 : 50 minutes = x : 300 minutes

6000/50 = x / 300

Cross product

6000 * 300 = 50 * x

1,800,000 = 50x

x = 1,800,000 / 50

= 36,000

x = 36,000

Javier walks 36,000 steps

Ebony describes her step rate with the equation y = 118x

x = 300 minutes

y = 118(300)

= 35,400

y = 35,400

Ebony walks 35,400 steps

Therefore,

Javier walks more steps than ebony given the same minutes

Ahmad’s father is 4 times as old as Ahmad. After 5 years, father will be three times as old as Ahmad. Find their present ages

Answers

The present age of Ahmed and Ahmed's father is 12 and 36 respectively.

Step-by-step explanation:

Given : Ahmed's father is thrice as old as Ahmed. After 12 years, his age will be twice that of his son.

To Find : Their present age ?

Solution :

Let the Ahmed's age be 'x'.

Ahmed's father is thrice as old as Ahmed.

i.e. Ahmed's father age is '3x'

After 12 years, his age will be twice that of his son.

i.e. 3x+12 = 2(x+12)3x+12=2(x+12)

Solving the equation,

3x+12 = 2x+243x+12=2x+24

x=12x=12

So, Ahmed's age is 12.

Ahmed's father age is 3\times 12=363×12=36

Therefore, The present age of Ahmed and Ahmed's father is 12 and 36 respectively.

There is 3 times in space of 4 times please mark as brainlist

can I get help please ​

Answers

The first one is the answer ......

Answer:

im pretty sure its the second one

Sayir is saving up his money to buy a laptop that costs $565.95. Right now he has $205.00, and can save $46.00 each week. How many weeks will it take for Sayir to have enough money for the laptop. Answer the question and put down how you solved it (Answer Choices: A: 6 weeks, B: 7 weeks, C: 8 weeks, D: 9 weeks)

Answers

Answer:

8 weeks

Step-by-step explanation:

You would subtract 565.95 from 205 to get 360.95 then divide it hy each number until you get to 46 and dividing by 8 equals this

If 1/8 = 1ft and the wall is 56 ft wide how long would the wall be in inches?

Answers

Answer:

7

Step-by-step explanation:

it would be 7 inches because 1/8 * 56 is 56/8 and that simplified is 7

A family went to a baseball game. They parked the car in a parking lot which charged​ $5. The cost per ticket was​ $21. Write an equation for the total cost of going to the baseball​ game, where y is the total cost and x is the total number of people.

Answers

Answer:

y=21x+5

Step-by-step explanation:

the exchange rate in london is £1 = 1.14 euros
the exchange rate in paris is 1 euro = £0.86
haley wants to change some pounds into euros
in which of those cities would haley get the most euros?

thanks for your time, it is much appreciated <33

Answers

Answer:

London

Step-by-step explanation:

Euro= 1.14 x 5

5.70

Which table represents a linear function?

Answers

Answer:

A.

(1,3)

(2,7)

(3,11)

(4,15)

Step-by-step explanation:

I plotted the points into a graphing calculator

plz help, look in the picture. Then i will add you to brainliest promise ​

Answers

Answer:

I think B or C

Step-by-step explanation:

I think B or C because it is the closest to 52.8.

Hope this helps you.

The answer is B

Because when you round 52.8 you would get 53 but because 53 isnt an option you would do 54 because 54 is closer to 53 than 50. Then you woukd divide because Alexandra is dividng the bags equally into 9 bags.

A science teacher has 0.4 of seawater she gives each of her 22 tune in a container or a 5ml spoon she asked as soon as you put two spoonfuls old seawater into their container how many millimeters of seawater will be locked after all 22 minutes of fill their containers

Answers

Answer:

the photo is the answer

Which ordered pair is in the solution set of y>1/3x + 4? (this > is actually greater than or equal too)

a.(-6, 1)
b.(-1,6)
c.(6,-1)
d.(1,-6)​

Answers

Answer:

looking for it

Step-by-step explanation:

Answer:

-1,6

Step-by-step explanation:

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