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creativ13 [48]
3 years ago
6

the ratio of hydrogen atoms to oxygen atoms in water is 2:1. If an amount of water contains 341 trillion atoms of oxygen, how ma

ny hydrogen atoms are there?
Mathematics
1 answer:
Stolb23 [73]3 years ago
6 0
There are twice as many hydrogen as oxygen 341 x 2 = number of hydrogen in trillions of atoms.
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1/3 of a number is 12 less than the number itself
natulia [17]
Let "x" be a substitute for "a number"

1/3(x)=x-12    Multiply by 3
x=3x-36         Get n onto the same side of the equation
2x=36            Divide by 2
x=18

That's your answer.
5 0
3 years ago
What is the circumference of a circle that has a diameter of 12 feet
frosja888 [35]

Answer:

i think it's 37.7

Step-by-step explanation:

5 0
2 years ago
Help with this problem pls
Vaselesa [24]
Answer: (x+5)


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5 0
2 years ago
suppose you deposit $2,475 in a savings account that earns 6.25% simple interest per year. How much simple interest would be ear
Nikolay [14]

$116.02 interest will be earned in 9 months

Step-by-step explanation:

The formula for simple interest is given by:

I = Prt

Here

P is the initial amount

r is the interest

t is the time measured in years

Given

P = $2475

r = 6.25% = \frac{6.25}{100} = 0.0625

t = 9 months

Converting time into year by dividing by 12

t = \frac{9}{12}\ years = 0.75\ year

Putting the values in the formula

I = 2475 * 0.0625 * 0.75\\I = 116.0156

Rounding off to nearest hundredth

I = $116.02

Hence,

$116.02 interest will be earned in 9 months

Keywords: Interest, simple interest

Learn more about simple interest at:

  • brainly.com/question/774670
  • brainly.com/question/763150

#LearnwithBrainly

6 0
3 years ago
While researching different companies, she discovers the following standard deviations of one year of daily stock closing prices
kirza4 [7]

The data and assuming shows that the company that would give Donna a stable long-term investment is A. eye remember enterprises; the smaller deviation indicates that eye enterprises have less variability in its closing prices than masterful pocket watches.

<h3>How to illustrate the information?</h3>

It should be noted that the information given implies that Donna needs a stable long term investment.

In this case, it's appropriate that the company that has the less standard deviation should be chosen.

This illustrates that Perfect Plungers has less variability.

In conclusion, the correct option is A.

Learn more about data on:

brainly.com/question/19243813

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3 0
1 year ago
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