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
lidiya [134]
3 years ago
15

12 is 30% of what?

Mathematics
1 answer:
alexgriva [62]3 years ago
5 0
12 = 30% of what
12 = 0.30x
12 / 0.30 = x
40 = x.......so 12 is 30% of 40
You might be interested in
Find the solution set of the inequality:<br><br> -3x + 8 &lt; 15
Nata [24]

Answer:

the answer would be x>-7/3

7 0
3 years ago
Plz help me get the right answer to these
adoni [48]

-8(-4) + y = 37

32 + y = 37

y = 5

when x = -4, y = 5

7 0
3 years ago
Read 2 more answers
Write the reciprocal of -3/7
Alex_Xolod [135]
By flipping the fraction of -3/7, you will get the fraction of -7/3 or - 2 1/3.

Therefore, the reciprocal of -3/7 is - 2 1/3.

Hope this helps!
6 0
3 years ago
Read 2 more answers
Suppose that F is an inverse square force field below, where c is a constant.
Andre45 [30]

Answer:

Forces in our Universe

Step-by-step explanation:

a)

First of all we have,

F(r) = \frac{cr}{|r|^{3} }

and,

r = xi+yj+zk

We need to define a function that allows us to find said change based on r, so one of the functions that shows that change is,

f(r) = - c /|r|

That is,

\nabla f = F

For this case F is a conservative field and the line integral is independent of the path. Thus, defining  P_{1} = (x_{1}, y_{1}, z_{1}) and P_{2} = (x_{2}, y_{2}, z_{2}) . So the amount of work on the movement of the object from P1 to P2 is,

W=\int\limits_c  {F} \, dr

W= f(P_{1}-P_{2})

W= \frac{c}{(x_{2}^2+ y_{2}^2+ z_{2}^2)^{1/2} } -\frac{c}{(x_{1}^2+ y_{1}^2+ z_{1}^2)^{1/2}}

W= c(\frac{1}{d1}-\frac{1}{d2}  )

2) The gravitational force field is given by,

F(r) =-\frac{mMGr}{ |r|^3}

The maximum distance from the earth to the sun is 1.52*10 ^ 8 km and the minimum distance is 1.47*10 ^ 8km. The mass values of the bodies are given by m = 5.97*10 ^ {24}kg, M = 1.99 *19 ^ {30}kg and the constant G is 6.67 * 10 ^{ -11 } \frac{Nm ^ 2}{kg^2}

In this way we raise the problem like this,

c= -mMG

W= -mMG (\frac{1}{1.52*10 ^ 8} -\frac{1}{1.47*10 ^ 8} )

W= -(5.95*10^{24})(1.99*10^{30})(6.67*10^{-11})(-2.2377*10^{-10})

W \approx 1.77*10^{35}}J

5 0
2 years ago
The retail price of the latest video game is $89.00. If the shipping charges are 7%, how much will the video game cost? A. $95.2
Evgesh-ka [11]

Answer:

A. $95.23 Hope this helps!

3 0
3 years ago
Other questions:
  • Which of the following would be equivalent to 3 to the second power times 3 to the 5th power
    13·1 answer
  • Assume that y varies directly with x, then solve.
    12·2 answers
  • What are the measurement lengths that form a right triangle?
    14·1 answer
  • Which shows faster decay 0.8 or 0.9
    11·1 answer
  • Help me quick i need the answer!!!
    14·2 answers
  • Which table represents the function y = 2x + 4?
    15·1 answer
  • In a large population, 92% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
    14·1 answer
  • Pls help me I’ll mark brainliest!!
    11·2 answers
  • Mr. Rosart selects two students from his class to present their book reports. He places the names of each student in a box and r
    12·2 answers
  • Write this equation of a line in point slope form: slope 1/2; (3, -1)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!