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Elena-2011 [213]
3 years ago
10

A 280 mL solution is 20% salt. How much water should be added to make the solution14% salt?​

Mathematics
1 answer:
QveST [7]3 years ago
3 0

Answer:

400

Step-by-step explanation:

20%/14% = 1.42857

1.42857 x 280 = 400.

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Answer:

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Step-by-step explanation:

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5 0
3 years ago
if a one bedroom apartment that rents for $450 in Detroit rents for 250% of that price in manhattan, what is the rent in Manhatt
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Answer:

$1125

Step-by-step explanation:

To find percentage of something, we always take the percentage, convert it to decimal by dividing by 100, and then multiply that decimal with the number given.

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So, 250% = 2.5

Now we multiply this with $450 to find rent in Manhattan:

2.5 * 450 = $1125

That's a whooping price of $1125 in Manhattan!!

4 0
3 years ago
Results of a poll stated that 40% of U.S. adults identify as Republican, and you want to test the claim at alpha = 0.05. What le
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Answer:

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Step-by-step explanation:

Consider the provided information.

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If you want to test the claim at alpha = 0.05.

As we know:

Confidence level = 1 - significance level (\alpha)

Confidence level = 1 - 0.05

Confidence level  = 0.95

Therefore, the confidence level is 95% or 0.95.

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