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
Readme [11.4K]
4 years ago
10

How do I calculate percentage is a number? Ex. 30% is 15

Mathematics
2 answers:
grin007 [14]4 years ago
7 0

i learned it as "is" over "of" "per" over "cent"

cent means 100

what IS 30% OF 670

so that would be

x/670 30/100

and then you cross multiply

100x = 20100

x = 201

puteri [66]4 years ago
5 0
You first divide the number by 100 and then multiply it by the percentage that you are given
You might be interested in
Add the following numbers a)and b)<br>answers please ​
Drupady [299]
Answer: a) 3 2/3, b) 5 2/5

Explanation:

a) 5/3 + 6/3 = 11/3 = 3 2/3

b) 12/5 + 15/5 = 27/5 = 5 2/5
4 0
3 years ago
Read 2 more answers
Given a soda can with a volume of 21 and a diameter of 6, what is the volume of a cone that fits perfectly inside the soda can?
lutik1710 [3]
If the soda can is a cylinder, which is most likely, than that means we need to find the height of the cone. The formula for volume of a cylinder is V= пr^2h (look at the pic for clearer formula) and we know the diameter of the soda can is 6, we know the radius is 3 because diameter is a line reaching from one point of the circle to the other. Radius is a line reaching from the center of the circle to the outside as shown in the image. We divide pi (you can put in the calculator 3.14) from 21, then we get 6.688 (if we round up) and then you must look at the formula now

it looks like
6.688=r^2h

that means we must find 3^2
that basically means 3x3 which is 9

then you have to divide that from 6.688

then you get 0.743

that is your height.

now we must find the volume of the cone. The formula for that is

V=пr^2(h/3)

now lets plug in our info

V=(3.14)(9)(0.743/3)

you get 6.999

4 0
3 years ago
Read 2 more answers
Need help asap!!! plzz
Natali5045456 [20]

Answer:

(C)$62.00

Step-by-step explanation:

$200 x .31 = $62.00

6 0
3 years ago
Read 2 more answers
What is the distance between (5,10) and (5,2)?
Licemer1 [7]
The distance is 8, since the x co-ordinate stays 5, the y co-ordinate goes from 10 to 2, which is an 8 distance
5 0
3 years ago
The height that a properly inflated basketball bounces decreases exponentially by 27.8% with each subsequent bounce after the in
n200080 [17]

Answer:

H (b) = 0.722^b(6)

Step-by-step explanation:

The first time the basketball bounces it reaches a height of (1-0.278)(6) = (0.722) (6).

The second time the basketball bounces it reaches a height of (0.722) (0.722) (6) = [(0.722) ^ 2] (6). Therefore, after b rebounds the height that the basketball will reach is given by:

H (b) = 0.722^b(6)

3 0
4 years ago
Other questions:
  • Part 2
    10·1 answer
  • What is 3 3/8 inches - 2 3/4 inches
    14·2 answers
  • Solve for w.<br><br> −(14w+8)+8=3<br><br> w=134<br><br> w=−12<br><br> w=−34<br><br> w=52
    7·2 answers
  • Question 6 of 10
    10·1 answer
  • Someone please help me in this question it is kind of confusing it is a question under pre calculus in first year calculus i wil
    5·1 answer
  • A regular triangular pyramid has a base area of 31.5 mm2
    5·1 answer
  • A box contains 4 plain pencils and 4pens. A second box contains 3 color pencil and 5 crayons one item from each box is chosen at
    6·1 answer
  • Which expresión is equvalient yo 810-210+20+20
    13·2 answers
  • Does anyone know the correct synthetic division of (x^2 – 4x + 7) ÷ (x – 2)?
    6·2 answers
  • Determine the relative order of the metric prefixes of kilo-, micro-, centi-, and milli-.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!