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
Molodets [167]
3 years ago
14

A company makes steel rods shaped like cylinders. Each rod has a diameter of 4 centimeters and a height of 60 centimeters. If th

e company
used 54,259.2 cm of steel, how many rods did it make?
Use 3.14 for “pie” and do not round your answer.
___rods
Mathematics
1 answer:
gavmur [86]3 years ago
5 0

Answer:

See below.

Step-by-step explanation:

1) Please check the number of volume of steel. It should be 54,259.2

{cm}^{3}

. Not 54,259.2 cm. Right?

2) If so,

First

The volume of single rod

=  \pi \times ( { \frac{4}{2} })^{2} \times 60= \pi \times  {2}^{2} \times 60= 4\pi \times 60= 4 \times 3.14 \times 60= 753.6 {cm}^{3}

The number of rods

=  \frac{54259.2}{753.6}  = 72

You might be interested in
The ratio of boys to girls in a classroom is 4 : 5. What is the meaning of this ratio? ​
vitfil [10]

Answer:

there are 4 boys for every 5 girls.

Step-by-step explanation:

6 0
2 years ago
Stefan won 54 lollipops playing hoops at the county fair. At school he gave three to every student in his math class. He only ha
Natalka [10]
54 - ? = 9
? = 45
45 divide 3 is 15
15 people
3 0
3 years ago
1.Write this sentence as an equation.Do not solve it.
Ivahew [28]

Problem 1

x = some unknown number

3x = three times a number

3x-7 = difference of three times a number and seven

2(3x-7) = two times the difference of three times a number and seven

2(3x-7) = x

The last equation is formed because the expression we built up is equal to the original number in question

<h3>Answer:  2(3x-7) = x</h3>

===========================================================

Problem 2

Use the distribution rule to get

3(2x+4)-2x

3*2x+3*4-2x

6x+12-2x

From here, we combine like terms. That means we combine the 6x and -2x to get 4x

So 6x+12-2x simplifies to 4x+12 and not 16x

How did she get 16x? Possibly because she mistakenly thought she could add 4x to 12 to get 16x. This only works if the 12 had x attached to it.

In other words, this is valid:  4x+12x = 16x but this is not 4x+12 = 16x

===========================================================

Problem 3

L = length = horizontal dimension = (d+15) ft

W = width = vertical dimension = (d-3) ft

P = perimeter of the rectangle = 108 ft

P = 2(L+W)

108 = 2(d+15+d-3)

108 = 2(2d+12)

108 = 4d+24

4d+24 = 108

4d = 108-24

4d = 84

d = 84/4

d = 21

The deep end is 21 feet long.

This means the overall horizontal length is d+15 = 21+15 = 36 feet and the the vertical width is d-3 = 21-3 = 18 feet

The overall dimensions of the rectangular pool are 36 ft by 18 ft

<h3>Answer:  d = 21</h3>
7 0
3 years ago
a rectangular table top has a length of 4 3/4 ft and an area of 11 7/8 square feet what is the width of the table top
mina [271]
4¾=19/4 and 11⅞=95/8.
Width=area/length=95/8÷19/4=95/8×4/19=5/2=2½ft.
8 0
3 years ago
Three different golfers played a different number of holes today. Rory played 9 holes and had a total of 42 strokes. Jordan play
stiv31 [10]
Okay so for each person we're pretty much gonna have to find the value of strokes over holes.
Rory: 42 strokes per 9 holes
Jordan: 79 strokes per 18 holes
Ricky: 123 strokes per 27 holes

Now, we can do the division for each person and round. But first, I'll say stokes per hole is s/h. Just feed each number into a calculator like this: <em>per </em>means divide.

Rory: 4.66667 s/h
Jordan: 4.38889 s/h
Ricky: 4.55556 s/h
Well, Jordan had the lowest number of strokes per hole since his value is the smallest.

Answer: Jordan
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which example illustrates the distributive property? 4 + 5 = 5 + 4 3(x + 4) = 3x + 12 5 * 1 = 5 4 + (5 + 6) = (4 + 5) + 6
    11·2 answers
  • There were 4 car races on saturdayand 3 on Sunday. If there were 9 cars racing in each race, how many cars raced over the two da
    6·1 answer
  • 20c + 8d +10c - 5d<br><br><br> please answer you would get 15 points!
    13·2 answers
  • Factor -24a3b3c3 - 84a4b2c.
    8·2 answers
  • 8(-10)okayokyaolkaakakak
    5·1 answer
  • Keisha is riding her bike on Bayview Bike path. Keisha‘s bike got a flat tire 2/3 of the way down the path, so she had to stop.
    14·1 answer
  • Solve:<br>log2 3√(2)/ 16 = s​
    9·1 answer
  • PLS HELP the LAST QUESTION, please...
    10·1 answer
  • Holly, Chris and Tony each collect action figures. Chris has twice as many action figures as Holly Holly has 3 fewer action figu
    6·2 answers
  • A student has some $5 bills and $10 bills in her wallet for a total of $100. The amount of $10 bills she has is 3 more than 3 ti
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!