A road roller with a 55-inch
diameter is traveling at
3 miles per hour. How many
revolutions per minute is
the roller turning? Round
your answer to the
nearest tenth
Answers
Answer:
18.34times
Step-by-step explanation:
the explanation is given in the pictures...
The road roller is turning at the rate of [tex]18.3rev/minute[/tex]
To get our answer, first note that
[tex]speed=\dfrac{distance}{time}[/tex]
since the distance travelled by the road roller can be gotten by
[tex]distance= circumference\times revolutions[/tex]
our speed formula can be expressed as
[tex]speed=\dfrac{circumference\times revolutions}{time}[/tex]
making the number of revolutions the subject of the formula, we get
[tex]revolutions=\dfrac{speed \times time}{circumference}[/tex]
carrying out the following substitutions
[tex]speed=3miles/hour=\frac{3\times63360}{60}inches/minute=3168inches/minute\\time=1minute\\circumference=2\times3.14\times\frac{55}{2}=172.7inches[/tex]
we can now calculate the number of revolutions
[tex]revolutions=\dfrac{speed\times time}{circumference}\\\\=\dfrac{3168\times 1}{172.7}\approx18.3rev/minute\text{ (to the nearest tenth)}\\\\[/tex]
Learn more about circumference of circles here https://brainly.com/question/5688156
Related Questions
FInd the value of x/
Answers
Answer:
x=18
Step-by-step explanation:
PLZ HELP DUE AT 12
Answers
Answer:
The first one would be m^30n^20p^30
And the second one would be a^2 / d^4
Step-by-step explanation:
For 1, you have to multiply the inner exponents by the outer one so you get (m^12n^8) times (m^18n^12p^30). Then you mutiply the two together, so you add the exponents, where you get m^30n^20p^30.
For 2, since you're dividing, you have to subtract the exponents so you get a^2d^-4, but since you shouldn't have the negative you turn it into a^2 / d^4
Hope this helps :)
Sales associates at an electronics store earn different commission
percentages based on the items they sell. The table shows the total
sales and commission earnings for four sales associates at the
electronics store last month.
GIFTING EXTRA POINTS
Answers
Answer:
how am i gonna solve the equation if i cant see the actual chart?
Step-by-step explanation:
pls help it’s timed loll
Answers
Answer:
A
Step-by-step explanation:
2.2*4 = 8.8
8.8+1.7= 10.5
Answer:
The answer is A 2.2
Step-by-step explanation:
2.2×4=8.8
8.8+1.7=10.5
what is the first step to solving 9z-21=60
Answers
Answer:
add 21 to both sides
Step-by-step explanation:
9z-21=60
9z-21+21 =60+21
9z=81
9z/9=81/9
z = 9
Halp aspp
give brialest
Answers
Answer:
Cant see the full photo {error}
The point (2, 18) is an ordered pair in a proportional relationship. What equations represents this relationship?
y = 1/9x
y = 18x
y = 9x
y = 2x
Answers
Answer:
y = 9x
Step-by-step explanation:
If you plug in the point into each equation, you get:
y = 1/9x
18 = 1/9 * 2
18 = 2/9
not true
y = 18x
18 = 18 * 2
18 = 36
not true
y = 9x
18 = 9 * 2
18 = 18
true, so this is the answer
y = 2x
18 = 2 * 2
18 = 4
not true
Select all the ways you can tell that there is no solution to a system of equations.
A. The equations have different slopes and have the same y-intercepts.
B. The equations have the same slope and have different y-intercepts.
C. The graph of the system shows the same line.
D. The graph of the system shows parallel lines.
E. The graph of the system shows perpendicular lines.
THERE CAN BE MORE THAN ONE ETC ANSWERS
Answers
Answer:
b and d
Step-by-step explanation:
The ways you can tell that there is no solution to a system of equations are:
B. The equations have the same slope and have different y-intercepts.D. The graph of the system shows parallel lines.A linear equation is represented as:
[tex]y = mx+c[/tex]
Where:
m represents the slopec represents the y-interceptWhen the equations in a system of linear equation has the same slope, then the equations are parallel, and they have no solution.
Hence, the true statements are (b) and (d)
Read more about systems of linear equations at:
https://brainly.com/question/14323743
y = 7x + 10y = -4x - 23
Answers
Answer:
11x+23
y= - --------------
10
Step-by-step explanation:
Simplify the expression
Answers
Answer:(6-[tex]\sqrt{7}[/tex][tex].^{2}[/tex]
Step-by-step explanation:Ignore the point, put it withou the point
Can someone please help me with my math corrections?
Answers
Answer:
Step-by-step explanation:
y = 2x + 3 {y = mx + b}
In Function A, rate of change is 2
Function B:
Rate of change = Change in y÷ change in x
[tex]= \frac{11-7}{0-[-1]}\\\\=\frac{11-7}{0+1}\\\\=\frac{4}{1}\\\\= 4[/tex]
In function B, rate of change is 4
Least: Function A
Greatest: Function B
slope is 2/3 y- intercept is -2
Answers
Answer:
y = (2/3)x - 2
Step-by-step explanation:
The equation of this line is y = (2/3)x - 2, where m is the given slope and -2 is the given y-intercept. We need only plug in the given values for m and b.
Answer:
[tex]y = \frac{2}{3} x -2[/tex]
Step-by-step explanation:
This is the slope-intercept form. The slope-intercept form is written as y = mx + b where m is the slope and b is the y-intercept. The y and x stay as they are.
I hope this was what you were looking for.
help me with maths :)
Answers
cos J: 12/13, 0.92
tan J: 5/12, 0.42
sin K: 12/13, 0.92
cos K: 5/13, 0.38
tan K: 12/5, 2.40
8p - 4=24.8
solve for p
Answers
Answer:
p = 3.6
Step-by-step explanation:
Our goal is to isolate P.
Let's start by adding 4 to each side:
8p = 28.8
Next, we will divide each side by 8:
p = 3.6
Hope this helped! :)
Where will Jack and Nolan meet
Answers
On Monday Ravi drives for 4 hours.
His average speed is 30 mph.
How far does Ravi drive on Monday?
Answers
Answer:
Step-by-step explanation:
On Monday Ravi drives for 4 hours.
His average speed is 30 mph.
How far does Ravi drive on Monday?
Answer:
120
Step-by-step explanation:
i dont know why they deleted the other person answer,but this IS correct.
Find x+y, if: 2x+3y=8 and 3x+5y=13
Answers
the answer can be found using math-way
There are 2 cats to 5 dogs. Which of the following is an equivalent ratio of cats to dogs?
Answers
Answer:
See below.
Step-by-step explanation:
The ratio of cats to dogs would be 2/5. This is the simplest ratio, but I assume you are looking for other ratios that are equal to 2/5
Since you did not provide choices to pick from, I can't really answer your question. But, some ratios that are equal to 2/5 are 4/10, 6/15, 8/20, and 10/25.
i don’t understand my homework?
Answers
Answer:
x = 140
Step-by-step explanation:
40 * 2 + 2x = 360
80 + 2x = 360
2x = 280
x = 140
Spencer bought 3 books of stamps and mailed a package. It cost 4.50 to mail the package. Define a variable and write an expression to represent the total amount he spent at the office.
Answers
Can someone please help me out with this
Answers
Answer:
hope it helps
Don has an album that holds 900 coins . Each page of the album holds 9 coins . If 78% of the album is empty, how many pages are filled with ?
Answers
Answer: 22% of the pages are filled up
Step-by-step explanation: 900/9= 100 78% of 100 is 78
22+78=100 therefore reaching 100 percent. since 78% is empty that means 22% is being used.
Can someone help me with this please I need help
Answers
Answer:
This is linear.
Step-by-step explanation:
Its because it has a constant rate, no sudden changes.
Answer: Linear
Step-by-step explanation:
This is linear because when graphed it is straight.
Lee performed the best on stage because the other contestant were not as confident as (him, he)
Answers
Answer:
him or he was
Step-by-step explanation:
Malala is following this recipe for bread rolls.
She uses 500 mL of water.
How much of each of the other ingredients does she use?
Recipe: Makes 15 bread rolls
480 g flour
12 g salt
6 g yeast
30 mL oil
600 mL water
Answers
Answer:
500ml water
400 g flour
2 g salt
5 g yeast
25ml oil
Step-by-step explanation:
A student is building a parallelogram- shaped deck with a base of (4x + 3) feet and a height of (3x - 2) feet. Which polynomial represents the area of her deck in square feet? (A.108)
F (12x2 + x - 6) square feet
G (7x + 1) square feet
H (12x2 + x - 5) square feet
J (7x2 + x - 6) square feet
Answers
Answer:
F
Step-by-step explanation:
see attached image above
Answer:
Step-by-step explanation:
the area will be
A=(4x+3)(3x-2)
A=12x^2-8x+9x-6
A=12x^2+x-6
Which is a better buy, 5 for $4.25 or 8 for $6.88?
Answers
Answer:
5 for $4.25
Step-by-step explanation:
First you find how much of one each cost
4.25 divided by 5 = 0.85
6.88 divided by 8 = 0.86
The one for 5 for $4.25 is one cent less
one cent is still money
PLEASE WILL GIVE BRAINLIEST
Match these men with their accomplishments.
1. the Native American chief who helped Smith Cartier
2. established San Diego La Salle
3. discovered Mississippi River De Bienville
4. founder of New Orleans De Soto
5. first explored the St. Lawrence River Marquette and Joliet
6. founder of Quebec Portola
7. claimed Atlantic coast for England Cabot
8. claimed New York area for the Dutch Powhatan
9. explored parts of the Mississippi for France Hudson
10. sailed the Mississippi to the Gulf of Mexico Champlain
Answers
1. 3rd last option
2. 6th one
3. 4th one
4. 3rd one
5. 1st one
6. Last one
7. 7th one
8. 2nd last option
9. 5th one
10. 2nd one
Sorry i have to write like this. Brainly is not allowing me to write answers. Please mark brainliest
Find the slope (-2,1)and (1,2.5)
Answers
Answer:
.5
Step-by-step explanation:
slope = rise/run= 1.5/ 3= 0.5
hope that helps if it does please mark as brainliest.
Pasha traveled 217 miles in 3.5 hours, how far does she travel in 1 hour