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
Ghella [55]
3 years ago
7

18 is 45% of what numbet

Mathematics
2 answers:
iragen [17]3 years ago
8 0
18 is 45% of a number
18 is 45% of x
18 = 45% of x
18 = 0.45 * x

Now, to isolate x, you divide both sides of the equation by 0.45.

18 / 0.45 = 0.45*x /0.45
x = 40

So, 18 is 45% of 40. Hope this helps! :)
Nataly [62]3 years ago
4 0
Part/Whole=Percent/100
Part=18
Percent=45
Whole= a variable that we are trying to figure out
so now its 18/x=45/100
Cross multiply and get 
45x=1800
Divide by 45 and get 40. 18 is 45%of 40
You might be interested in
Sarah scooped out forty-three pieces of candy to buy at the store. She wants to divide the candy evenly among eighteen people. H
Oksana_A [137]

Answer:

43 / 8 = 5.37

Step-by-step explanation:

each person will get around 5 pieces of candies...

7 0
2 years ago
Read 2 more answers
Write these numbers in order of size.<br> Start with the smallest number.<br> 52 102 25 120 55
Anton [14]
The answer is 25 52 55 102 120
8 0
2 years ago
Read 2 more answers
If all the dimensions of the rectangular pyramid are multiplied by 1/5, what is the effect on the volume
Pachacha [2.7K]

Answer:

If all the dimensions of the rectangular pyramid are multiplied by 1/5, the volume will be 125 times smaller.

Step-by-step explanation:

A rectangular pyramid has the following dimensions:

length(l), height(h) and width(w)

The volume is:

V = \frac{l*h*w}{3}

If all the dimensions of the rectangular pyramid are multiplied by 1/5

Then we have that:

l = \frac{l}{5}, w = \frac{w}{5}, h = \frac{h}{5}

The modified volume will be:

V_{M} = \frac{\frac{l}{5}*\frac{w}{5}*\frac{h}{5}}{3} = \frac{\frac{l*w*h}{125}}{3} = \frac{l*h*w}{125*3} = \frac{1}{125}(\frac{l*h*w}{3}) = \frac{V}{125}

So

If all the dimensions of the rectangular pyramid are multiplied by 1/5, the volume will be 1/125 of the original, that is, 125 times smaller.

4 0
2 years ago
Micaela spent $32 on writing utensils pens cost four dollars and pencils cost two dollars if she bought a total of 10 and how ma
Nimfa-mama [501]

Answer:

6 pens and 4 pencils

Step-by-step explanation:

6 x 4 = 24

4 x 2 = 8

24 + 8 = 32

7 0
2 years ago
I REALLY NEED HELP<br>please please help me <br><br>answer all please
Radda [10]

9514 1404 393

Answer:

  all are functions except Relation 2

Step-by-step explanation:

If any input value (first of an ordered pair) is used more than once, the relation is not a function. Output values can be used as often as you like.

Only Relation 2 is not a function.

3 0
2 years ago
Other questions:
  • What is the answer to 8x^3+125 by factoring the perfect cube?
    5·1 answer
  • What is the solution to this equation?
    8·1 answer
  • What is the slope and y intercept of the equation 6x - 1 = 3y - 10
    11·1 answer
  • Convert this number to scientific notation 1260000
    8·2 answers
  • Find the volume in ft cubed
    10·1 answer
  • A lamp that normally sells for $35 is on sale for
    10·1 answer
  • Please help Right answers only!!!
    14·1 answer
  • Can someone please help ASAP !!!!!!!!!!
    13·1 answer
  • 3 is the____ term<br><br>constant or variable ​
    11·1 answer
  • Help with proofs please
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!