1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andre45 [30]
2 years ago
9

I NEED HELP PLEASE, THANKS! :) A truck driver travels at 59 miles per hour. The truck tires have a diameter of 30 inches. What i

s the angular velocity of the wheels in revolutions per minute (rpm)? Show work.
Mathematics
2 answers:
Elanso [62]2 years ago
4 0

Answer:

661.4 rpm

Step-by-step explanation:

we know that

1 mile=63,360 inches

step 1

Find the circumference of the wheels

C=2\pi rC=2πr

we have

r=30/2=15\ inr=30/2=15 in -----> the radius is half the diameter

substitute

C=2\pi(15)C=2π(15)

C=30\pi\ inC=30π in

assume

\pi =3.14π=3.14

C=30(3.14)=94.2\ inC=30(3.14)=94.2 in

Remember that    

The circumference of the wheels represent one revolution

Convert 59 miles per hour to inches per minute

59\ mi/h=59*63,360/60=62,304\ in/min59 mi/h=59∗63,360/60=62,304 in/min

using proportion find the number of revolutions  

\begin{lgathered}\frac{1}{94.2}\frac{rev}{in}=\frac{x}{62,304}\frac{rev}{in}\\ \\x=62,304/94.2\\ \\x=661.4\ rev\end{lgathered}94.21inrev=62,304xinrevx=62,304/94.2x=661.4 rev

therefore

substitute

62,304\ in/min=661.4\ rev/min=661.4\ rpm62,304 in/min=661.4 rev/min=661.4 rpm

Licemer1 [7]2 years ago
4 0

Answer:  661 rpm

<u>Step-by-step explanation:</u>

Use the following conversions:

1 revolution = Circumference = 30 π inches

1 mile = 5280 feet

1 foot = 12 inches

1 hour = 60 minutes

\dfrac{59\ mile}{1\ hour}\times \dfrac{1\ revolution}{30\pi \ inches}\times \dfrac{5280\ ft}{1\ mile}\times \dfrac{12\ in}{1\ ft}\times \dfrac{1\ hour}{60\ minutes}\\\\\\=\dfrac{62,304\ revolutions}{30\pi \ min}\\\\\\=\large\boxed{661.0\ revolutions\ per\ minute}  

You might be interested in
There is a positive correlation between drinking coconut milk and eating potato chips. What does this correlation mean? What are
faltersainse [42]

Answer with explanation:

It is given that, there is positive correlation between drinking coconut milk and eating potato chips.

→Correlation coefficient is denoted by r.

→The value of r lies between , -1 and 1 which is represented as , -1 ≤r≤1.

→Correlation that is relation between two variables is said to be strongly positive, if r is equal to 1, and it is said to be strongly weak, if it is equal to -1 , and said to have no association if r=0.

→ The meaning of positive correlation is that value of r, is greater than >0.8 but less than 1.

The two variables which are positively correlated ,can have following relationship.

1. With increase in one other increases.

2.With decrease in one other decreases.

3. Slope will be a linear that is a straight line not passing through origin.

3 0
3 years ago
You charge people $10 per hour to pick fruits and $8 per hour
Aleks04 [339]
Fruits :
Y=10(h)

Flowers;
Y=8(h)

Given: h=6

Fruits:
10(6) = $60

Flowers:
8(6)= $48

Back to the question, how much more from picking fruits?

$60 - $48 = $12 more picking fruits.

Hope this helps!

8 0
3 years ago
How far did this person travel in Section C ( hours 6-7) Remember to include units​
cestrela7 [59]
From C in 1 hour they traveled 30 miles
5 0
2 years ago
Which equation is equal to 4^ x+3=64
Tems11 [23]

Answer:

x=ln(61)/ln(4)

Step-by-step explanation:

4^x+3=64

4^x=64-3

4^x=61

x=ln(61)/ln(4)

4 0
3 years ago
What is the x coordinate of the intersection of y=4x-10 and y=(x-2) to the power of 2 +2
aleksley [76]

Answer:

  4

Step-by-step explanation:

Equating the y-values gives an equation in x.

  4x -10 = (x -2)^2 +2

  0 = x^2 -4x +4 +2 -4x +10 . . . . . . . . eliminate parentheses, subtract 4x-10

  x^2 -8x +16 = 0

  (x -4)^2 = 0

  x = 4

The x-coordinate of the one point of intersection is x = 4.

6 0
3 years ago
Other questions:
  • 4.
    13·1 answer
  • Joan pays 456.25 monthly on her mortgage. If her annual insurance premium is 1,560 and her annual real estate tax is 1,890, what
    11·1 answer
  • 1 point<br> Carrying a dollar in your pocket is an example of which<br> characteristic of money? *
    10·1 answer
  • Find the value of x so that f (x)=7
    11·1 answer
  • How many solutions does 25-4x=15-3x+10-x have
    7·2 answers
  • From 248 to 200 workers
    10·2 answers
  • Help pls thanks i will give brainliest lol
    12·1 answer
  • What equation represents an exponential function that passes through the point (2, 80)?
    12·1 answer
  • Plz help ill give you brainliest for f<br> right answer
    11·1 answer
  • Find the diameter of the circle please
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!