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aleksandr82 [10.1K]
3 years ago
6

Which equation shows how you can fing the number of minutes in one year

Mathematics
2 answers:
prisoha [69]3 years ago
7 0

Answer:

\text{Minutes in a year}=\frac{\text{60 minutes}}{\text{Hour}}\times\frac{24\text{ hours}}{\text{Day}}\times\frac{\text{365 days}}{\text{Year}}

Step-by-step explanation:

We are asked to find the equation that shows the number of minutes in one year.

We know that 1 hour equals 60 minutes.

1 day equals 24 hours, so number of minutes in one day would be 24\text{ hours}\times \frac{\text{60 minutes}}{\text{Hour}}=24\times 60\text{ minutes}=1440\text{ minutes}

We know that one year has 365 days, so minutes in one years would be 1140\text{ minutes}\times 365=525600\text{ minutes}

\text{Minutes in a year}=\text{Minutes in one hour}\times\text{Hours in one day}\times \text{Days in one year}

\text{Minutes in a year}=\frac{\text{60 minutes}}{\text{Hour}}\times\frac{24\text{ hours}}{\text{Day}}\times\frac{\text{365 days}}{\text{Year}}

Mandarinka [93]3 years ago
4 0
60 minutes in an hour, 24 hours in a day, 365 days in a year. So,
60×24=1440 minutes in a day.
1440×365=525600 minutes in year. So the equation is
Minutes in an hour×Hours in a day=minutes in a day
minutes in a day×days in a year=minutes in a year
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What is 8 2/5% of 75? Write your answer as a decimal
likoan [24]

Answer: 0.875

Step-by-step explanation:

The answer that has already been given is perfect in and by itself. I just want to give you some methods for doing these type of questions so that you won’t stagger when you see these type of questions in exams (like the SAT).

Whenever you see such questions, remember the following things. These are conversions of English words to Mathematical tools.

What

=

Any variable like

x

Percent / Percentage / %

=

Divide by 100

of

=

Multiply

is

=

Put an equal to (

=

) sign

I’ll give you an example through a question.

What percent of 200 is 5?

Ans: Replace English words by mathematical tools according to the rules I told you.

x

( What) /100 ( percent)

×

( of) 200

=

( is) 5

In a refined form,

x

100

×

200

=

5

Calculate x. On calculating, x comes out to be

2.5

So, 2.5 percent of 200 is 5.

Now your question is actually very simple if you follow my rules.

You want 87.5%. By the rules, % means divided by 100. So

87.5

%

=

87.5

100

and now using the same strategy, Ans:

875

1000

Disregard the next section if you know how to convert a decimal to a fraction

Section Starts

First, I’ll write the decimal form. Whenever you divide by a number that is in form of 1 followed by

n

number of zeroes. (here 1 is followed by 2 zeroes), you should shift the decimal point to the left side by n places.

In this case, shift decimal point in 87.5 to the left by 2 places. So this becomes 0.875.

This is the answer in decimal point.

Now simultaneously, I’ll teach you how to convert a decimal into a fraction.

Here, you see 2 types of “numbers”. One to the left side of the decimal point and one to the right side of the decimal point.

Here, left side of decimal point is 0 and right side of decimal point is 875.

Count the number of digits in the number to the right side of the decimal point (Here, the number of digits is 3)

Remove the decimal point and divide the number by a number formed by 1 followed by the “digits” we obtained (i.e. 3).

So, 875/1000. Simplify this, and you get your answer.

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erastova [34]

Answer:

3.93 per hour

Step-by-step explanation:

The first 4 hours is at 20 hours / 4 hours  or 5 dollars an hours

The second  line has a slope of 2.50 dollars an hour

But there is also a surcharge when you go over 4 hours

That is a 5 dollar flat rate at 4 hours

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Divide by 7 hours

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