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
valina [46]
3 years ago
14

Find the number of steel ball bearings, each of diameter 0.7 cm, that can be made from 1kg of steel, given that 1cm cubed of ste

el weighs 7.8 g​
Mathematics
1 answer:
dimulka [17.4K]3 years ago
7 0

Answer:

Ball Bearing Volume = (4 / 3) * PI * radius ^3

Volume = (4 / 3) * 3.14159265 * (.35)^3

Volume = (4 / 3) * 3.14159265 * 0.042875

Volume = 0.17959438 cc

1 cc of steel = 7.8 g

Volume of 1 kg of steel = 1,000 cc / 7.8 g per cc

1 kg = 128.205 cc

Number of ball bearings we can make = 128.205 / 0.17959438

Equals 713.86

Step-by-step explanation:

You might be interested in
Do you guys know how to get points
vitfil [10]

Answer:

answer questions

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Isaac invested $460 in an account paying an interest rate of 2.4% compounded daily. Assuming no deposits or withdrawals are made
allochka39001 [22]

Answer:

t =17 years

Step-by-step explanation:

The formula for interest

A = P(1+ r/n)^ nt

where a is the amount in the account , p is the principal, r is the rate, n is the number of times compounded per year and t is the time in years

Substituting in what we know

690 = 460 ( 1+ .024/365)^ 365t

690/460 = ( 1+ .024/365)^ 365t

1.5 = ( 1+ .024/365)^ 365t

Taking the log of each side

log(1.5) = 365t log( 1+ .024/365))

Dividing each side by( 1+ .024/365)

log(1.5)/ log( 1+ .024/365) = 365t

divide each side by 365

1/365 log(1.5)/ log( 1+ .024/365)  =t

t =16.8949

To the nearest year

t =17

4 0
2 years ago
Read 2 more answers
Please can someone answer
Eduardwww [97]

Answer: 10 cm

Step-by-step explanation:

The answer would be 10cm for the boys because if you think about it all together for boys and girls it’s 161 cm and girls have 151 cm so if you add them toge your suppose to get 161 cm so the answer is 10 cm

5 0
2 years ago
We can use special triangles to solve for x in triangle A<br>true or false​
KIM [24]
I believe the answer is false.

explanation: a special triangle has side lengths of 3-4-5 or 6-8-10. In this case since you have 10 one of the other sides would have to be 6 or 8. You can use pythagorean theorem.
8 0
2 years ago
What is f(x) = 2x+ 1 pls. Answer needed ASAP
patriot [66]
X=2 is the correct answer x=2
8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the system of equations by graphing. <br><br> x+y=3<br> y=2x−15
    6·2 answers
  • Which shape can be classified as a rectangle? Rhombus Square Trapezoid Parallelogram (1 answer choice)
    11·2 answers
  • Pleaseee help i’m literally dying
    5·1 answer
  • Ten is at least the product of a number h and 5
    6·2 answers
  • Given the following system of equations:
    15·1 answer
  • Solve the exponential equation-<br><br> (-5)^2x=625
    5·2 answers
  • If y=40x Squared.. Find y when x=0​
    10·1 answer
  • Plz help a bestie out plzzz (puppy eyes)
    6·2 answers
  • The graph of a linear system is shown.
    6·1 answer
  • A cylindrical water tank has a diameter of 4 m and a height of 3 m, while a water tank shaped like a rectangular prism has a len
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!