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VladimirAG [237]
3 years ago
14

A computer downloads a 48 kilobyte file in 5 seconds. At this rate, how long will it take the computer to download a file that i

s 120 kilobytes?​
Mathematics
2 answers:
docker41 [41]3 years ago
4 0
The answer is 12.5 seconds.

48/5 = 120/x
x = 2.5
2.5 * 5 = 12.5
Tema [17]3 years ago
4 0

Answer:

12,5

Step-by-step explanation:

First, you need to find how many kilobytes do you download every seconds.

You simply divide 48 kilobyte / 5 seconds and you get 9,6 kB/s.

Now you know that your download speed is this you can find the amount of time needed for downloading 120 kilobytes.

You simply divide \frac{120 kilobytes}{9,6 kilobytes/s} = 12.5 s.

12,5 seconds.

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andreyandreev [35.5K]

Answer:

3.5% of 20, (0.035)*20, and 7% of 10

Step-by-step explanation:

Converting the mixed number (3 1/2) to a decimal yields 3.5, so 3.5% of 20 is correct.

3 1/2 is not equal to 3 1/2%, so 3 1/2 * 20 is not correct.

Converting the percentage to a decimal yields .035 which makes .35 too large, so (0.35) * 20 is not correct.

Changing the percentage to a decimal yields .035, so (0.035) * 20 is correct.

If you divide 20 by 2, you get 10, and if you multiply 2 by 3 1/2, you get 7. The 2 remains part of the expression, so it is equal to 3 1/2 of 20.

4 0
3 years ago
What is 1/10 as a percent?<br> what is 1/5 as a percent?
Ber [7]

Answer:

1/10 as a percent is 10%

1/5 as a percent is 20%

Step-by-step explanation:

You need to multiply the bottom numbers to 100 because usually all percentages are out of 100. The result is the top number.

7 0
3 years ago
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What is the answer 25b • (3a2 - 1)
Usimov [2.4K]

Answer:

Step-by-step explanation:

25b * (3a² - 1) = 25b * 3a² - 25b * 1

                     = 75ba² - 25b

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a(x - y) = ax - ay

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schepotkina [342]

There is an app that will help for these types of questions called, "Showmath."

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3 years ago
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Sandra is a real estate agent and rams 5000 commission on the selling of a 62,000 house. what is the percent of commission she r
sveta [45]
To find a percent, you use this simple formula:
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In this case, x is going to be your percent of commission.

So, to find this, you first divide 5000 by 62000, which is about equal to 0.08.

Now your equation looks like this:
0.08 = x/100

Next, you multiply both sides by 100 to reverse the operation. Now, your equation will look like this:

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3 years ago
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