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
AnnZ [28]
3 years ago
10

A rectangular container 20 cm long and 15 cm wide contains sone water. When an iron ball was put in the water level rose by 3cm,

find the the volume of the iron ball
Mathematics
2 answers:
aleksley [76]3 years ago
4 0
Given that an object will always displace the same amount of water that its mass is, the ball has a volume of 900cm^3. The displacement method. You get this by multiplying 20 x 15 (the lengths and widths) and multiply it by 3 (the height the water rose) to find the volume.
svp [43]3 years ago
4 0
Volume of rectangular is 20x15xh where h= height.
V1 = 300h
If the water level rose by 3, this multiplies the volume by 3.
V2 = V1x3 = 900h
V2-V1 = 600h which must be the volume of the ball.
You might be interested in
I neeeeed helpppppppppppp
PIT_PIT [208]

Answer:

x = -1

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
There is a​ 10% chance of the mean​ oil-change time being at or below the sample mean for which there is an area of 0.10 to the
Zarrin [17]
The probability that a normally distributed data with a mean of μ and a standard deviation of σ is less than a value x is given by:

P(X\ \textless \ x)=P\left(z\ \textless \  \frac{x-\mu}{\sigma} \right)

Given that μ = 16.5 and σ = 0.804984 and that the probability that the <span>mean​ oil-change time being at or below the sample mean for which there is an area of 0.10 to the left under the normal curve, then:

P\left(z\ \textless \  \frac{x-16.5}{0.804984} \right)=0.1\\  \\ \Rightarrow P\left(z\ \textless \  \frac{x-16.5}{0.804984} \right)=P(z\ \textless \ -1.281) \\  \\ \Rightarrow\frac{x-16.5}{0.804984}=-1.281 \\  \\ \Rightarrow x-16.5=-1.281(0.804984)=-1.031 \\  \\ x=-1.031+16.5=15.47</span>
6 0
4 years ago
1/3 cup of flour is used to make 5 dinner rolls. how many cups of flour are needed to make 3 dozen dinner rolls
MAVERICK [17]
F = Cup of flour

D = Dinner roll(s)

12 = A dozen

36 = Three dozen

---------

1/3 * F = 5 * D

n * F = 36 * D

------

\frac { 1 }{ 3 } F=5D\\ \\ 3\cdot \frac { 1 }{ 3 } F=3\cdot 5D\\ \\ F=15D

nF=36D\\ \\ n=\frac { 36D }{ F }

This means that...

n=\frac { 36D }{ 15D } \\ \\ n=\frac { 36 }{ 15 } \\ \\ n=\frac { 3\cdot 12 }{ 3\cdot 5 } \\ \\ n=\frac { 12 }{ 5 } \\ \\ n=\frac { 10 }{ 5 } +\frac { 2 }{ 5 } \\ \\ n=2+\frac { 2 }{ 5 }

And this means that two cups of flour and 2/5 of a cup of flour are required to make 3 dozen dinner rolls.
6 0
4 years ago
Help help help help help
Morgarella [4.7K]

Answer:

x2+y2−12x+4y−60=0

The center of the circle is point: C=(6,−2).

The radius of the circle is r=10.

3 0
4 years ago
State sales tax on new car purchases is 5%. Find the sales tax on a car costing $22,489
madam [21]

Answer: $1124.45

Step-by-step explanation:

multiply the tax (0.05) by the priced of the item

3 0
4 years ago
Other questions:
  • What is the average rate of change of the function over the interval x = 0 to x = 8?
    12·1 answer
  • Mr. Lee wants to buy books for his students. The amount of money he will spend in dollars is 1.5 b, where b is the number of boo
    5·1 answer
  • Jeans bedroom is 11 feet by 13 feet. She has chosen a carpet which cost $33.35 per square yard. This includes installation. Dete
    7·1 answer
  • Please help what is this i will give you coins<br><br> x/5+ 3 = 2<br> what is the x?
    5·2 answers
  • If the length of the rectangle is twice the width and the perimeter of the rectangle is 30 cm, what is the length and width of t
    15·1 answer
  • -6-8(-8x-3) please help me and with how you did it
    9·1 answer
  • Potatoes takes up 3/8 of the garden . Carrots take up 2/3 of the garden tomatoes take up 1/3 of the garden . The rest of the gar
    11·2 answers
  • ????????????????? Please help me
    8·2 answers
  • Plz answer this ill give 10pts
    8·1 answer
  • A<br> Which picture shows a proper<br> reflection across the red dashed line?<br> A<br> B
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!