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3 years ago

6

10. 0.75,1/2, 0.4,and 1/5 from least to greatest

1 answer:

Pavlova-9 [17]3 years ago

5 0

Let's turn these into decimals.

so, 10.

0.75

0.50=1/2

0.40

0.20=1/5

In order from least to greatest, these would be:

0.2, 0.4, 0.5, 0.75, 10

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Answer:

<u>800 liters</u> of 90% saline solution and <u>1200 liters</u> of 40% saline solution should be used.

Step-by-step explanation:

Given:

At 2000 liters of 60% saline solution the attendant has to mix a 90% and a 40% saline solution.

Now, to find the number of liters of saline solution each should be used.

<u><em>Let the liters of 90% saline solution mix be </em></u> $x.$ <u><em /></u>

<u><em>And let the liters of 40% saline solution mix be</em></u> $y.$

So, the total number of liters:

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Substituting the value of $y$ from equation (1) we get:

$0.9x+0.4(2000-x)=1200$

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<u>Thus, the liters of 40% saline solution = 1200.</u>

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