All categories

3 years ago

18 is 45% of what numbet

2 answers:

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. Start with the smallest number. 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:

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

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 please please help me 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