Mathematics High School

PLEASE HELP
A company makes steel rods shaped like cylinders. Each rod has a diameter of 8 centimeters and a height of 20 centimeters. If the company used 28,134.4 cm3 of steel, how many rods did it make?

Answers

Answer 1

Answer:

1,172.3 cm³

Step-by-step explanation:

Find the volume of one rod, then divide the total volume of steel used by the volume of one rod.  The volume of one rod is

V = (πd²/4)h

d = 4 cm

h = 20 cm

Plugin the numbers and get V in cm³, then divide the given total volume of 28,134.4 cm³ by V.  If the result is not an integer, then round down.

Add

20 + 4 = 24

Then

28,134.4 ÷ 24 = 1172.26

Rounded to the nearest 0.1 or  the Tenths Place = 1,172.3

Therefore, 1,172.3 rods will be made per hour.

Related Questions

Find the tip:
A $32 meal with a 15% tip
Tip = $ ____​

Answers

Answer:

$4.80

Step-by-step explanation:

$32 × 0.15 = $4.80

Can anyone help that would be nice

Answers

Answer:

4 i hope that helps

converting slope-intercept form into standard form, i’m so confused

Answers

Answer:

7x+2y=(-6)

Step-by-step explanation:

A school group rented a banquet room for $110. They also paid $15 for each person (p) at the banquet. The total bill was $1,460. Which equation models the total cost for the group to rent the room?
A-15 + 110p = 1,460
B-10 + 15p = 1,460
C-110(p + 15) = 1,460
D-15(p + 110) = 1,460

Answers

Answer:

10+15p =1460

Step-by-step explanation:

I really need help here:0

Answers

The slope of the line is -1.5

What line passes through (4,-5) ; m=6

Answers

Answer:

I cant tell you the answer but think of this formula.

Step-by-step explanation:

Elena and jada are going home. Elena runs at a constant speed of 4 miles per hour, and jada walks at a constant speed of 2 miles per hour. How far will each one be after 1.5
hours

Answers

Answer:

Elena will run 6 miles in 1.5 hours

Jada will walk 3 miles in 1.5 hours

Step-by-step explanation:

Multiply: 4*1.5=6 (Elena's)

Multiply:2*1.5=3  (Jada's)

Elena will run 6 miles in 1.5 hours

Jada will walk 3 miles in 1.5 hours

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

Please correct me if I'm wrong

PLSSSSSSS HELP ILY TYSM

Answers

Answer:

5. k=−3

6.  x=4

7. n=−108

Step-by-step explanation:

5. -14k+29=71

Subtract 29 from both sides

-14k+29-29=71-29

Simplify

-14k=42

Divide both sides by -11

-14k/-14=42/-14

6. -33=19-13x

Subtract 29 from both sides

-14k+29-29=71-29

Simplify

-14k=42

Divide both sides by -14

-14k/-14=42/-14

Simplify

k=-3

7. 8+n/25=-4

Multiply both sides by 25

25(8+n)/25 = 25 (-4)

Simplify

8+n=-100

Subtract 8 from both sides

8+n-8=-100-8

Simplify

n=-108

Please help don’t play around it’s important

Answers

Answer:

A

Step-by-step explanation:

Answer:

A is correct, desmos is a good graphing app to help with these types of questions

Step-by-step explanation:

25POINTS HELP!!!!!!!!!!!

Answers

If B is 2/5 like I think it is that is the answer because the probability that someone sits in the middle row is 12/30 which is simplified to 2/5

Sally said that the fraction strip reminded her of rules and that you could use fraction strips to measure the progress on the fundraising thermometers what do you think

Answers

I need more information please

What is the slope of the line shown below?

A. -3
B.-6
C.6
D. 3

Answers

Answer:

D.3

Step-by-step explanation:

We are going to use the Slope Formula --> (y2-y1)/(x2-x1)

(9-3)/(3-1)=6/2=3

help pls alot points pls

Answers

NP would be 41.4. Half of NP is 20.7 so you would multiply by 2 to get 41.4

NM is 24. MP is 26. So you would add 24 and 26 and get 50. NMP is 50.

Use the diagram to the right to solve for y.
A y = 13
B
y = 15
C. y = 7.5
D
y = 20

Answers

Answer: D y=20

Step-by-step explanation: I minus 115 and 120 and and multiplied 4x and i got y=20. I hope this helps

40 divided by 28 but I need the answer in decimal form

Answers

Answer:

1.42857142857

Step-by-step explanation:

Answer: 1.428571 what is underlined is what repeats

Step-by-step explanation:

Edwin has $50.00 in his bank. He starts spending $2.50 each week on snacks at lunch graph it

Answers

Answer: 50.00 - 2.50 each week

Answer:

Step-by-step explanation:

First label the x axis as "Time (Weeks)" and y axis as "money in the bank account". The x axis should go by 1. As in the squares being, 1,2,3, etc. The y axis should go by 5's and end at 50. Plant a dot at coordinates (0,50) and continue by subtracting $2.5 per week. So the next coordinates should be (1, 47.5). In the end, there should be $25 left in the account (after using all of the boxes).

Can I plz have some help with this...?

Answers

Answer:

x=19

Step-by-step explanation:

The sum of the three anagles is 180

(5x+4)+(x-2)+(3x+7)=180

5x+x+3x+4-2+7=180

9x+9=180

9(x+1)=180

x+1=20

x=20-1

x=19

pleaase please please please please help meeeeeeeee i cant rn please help pleaseeee

Answers

Answer:

x+7

Step-by-step explanation:

Please explain...
y=3x^2-5x+1 solve by completing the square

Answers

Answer:

x=5+√136or x=5−√136

Step-by-step explanation:

To solve this equation we have to factorize 3x2−5x+1. Since we can not use any

PLEASE HELP ME SOLVE this

Answers

Answer:

y=-12/11

Step-by-step explanation:

y-(-12/11)=0(x-(-12/13))

y+12/11=0(x+12/13)

y+12/11=0

y=-12/11

Since the slope equals 0, then the line is horizontal.

1 (x + 4) = 20
x = 48
Help please.

Answers

Answer:

X actually equals 16 becaausw if yiu add 16+4 you get 20 and then you have to multiply 20 by 1 and you get 20 so x=16

Answer:

x = 16

I dont quite understand the x = 48 situation? But thats wrong if that's your answe

Step-by-step explanation:

So you have to find out what x is

in order to do that you have to work out the equation and whatever you do to one side you must do to the other side

simplify 1(x+4) = 20

x + 4 = 20

in order to get rid of 4 on one side you have to subtract it on both sides

so x = 16

what is 1/3 x 3/4 = to?

Answers

Answer:

1 1/12?

Step-by-step explanation:

It is equivalent to:

2/8 divided by 2  

(that equals 1/4)

Hope this helps.

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The sale price of every item in a store is 65% of its usual price. The usual price of a tennis racket is $70, what is its sale price?

Answers

Answer: 24.50$

Step-by-step explanation:

-3X + 24 = 48 X=
What would this equal?

Answers

Answer:

x=-[tex]\frac{24}{51}[/tex]

Step-by-step explanation:

-3x+24=48x

-3x-48x=-24

-51x=24

x=-[tex]\frac{24}{51}[/tex]

Please can someone help me with these? I'll give brainliest

Answers

Answer:

first one is right then

45 9/10

31 3/5

99 9/10

3 47/50

6 1/4

12 27/50

10 1/10

Step-by-step explanation:

A single card is drawn from a standard 52 card deck.
Work out the probability of choosing "a club".
Give your answer in its simplest form.
Help pleaseee

Answers

13 clubs in a deck
13/52
.25
Or 25% of drawing a club

Everyone keeps on ignoring me): please help will mark brainliest):

Answers

Answer:

Step-by-step explanation:

They are testing whether you remember the basic 30,60,90 degree triangle side relationship. The ratio of sides for this triangle are 1 opposite the 30 degree angle, square root of three opposite the 60 degree angle and a hypotenuse of 2 opposite the 90 degree angle.

x/2=2/1

x=4/1=4

bottom answer choice

x/4=3^(1/2)/1

x=4(3^(1/2))

third answer choice

2. Four big water bottles can hold 8 gallons of water. How much water can ten big water bottles
hold?

Answers

Answer:

16 1/2 gallons of water.

Step-by-step explanation:

Since 4 bottles can hold 8 gallons, and you need to know how much 10 can hold, you can multiply 4 and 8 times 2 so you get 8 and 16, and then if you choose 10 instead of 8 instead you would get the result of 10 bottles being able to hold 16 1/2 gallons of water.

I hope this helps you :D

Para que sirven los modelos matemáticos?

Answers

Answer:

Un modelo matemático es una representación simplificada, a través de ecuaciones, funciones o fórmulas matemáticas

Step-by-step explanation:

Un modelo matemático es una descripción de un sistema usando conceptos matemáticos y lenguaje. El proceso de desarrollo de un modelo matemático se denomina modelado matemático. Los modelos matemáticos se utilizan en las disciplinas de las ciencias naturales y la ingeniería, así como en sistemas no físicos como las ciencias sociales.

A plane is traveling at 600 miles per hour. How many feet per second is it traveling?

Answers

Answer:

600

Step-by-step explanation:

Answer:

880 ft/sec

Step-by-step explanation:

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