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earnstyle [38]
3 years ago
13

A doctor ordered 300 ml of a 10% solution,but the pharmacy only has 5% and 25% solutions. How many millimeters of each solution

should the pharmacist mix to get the prescribed medication for the man?
Mathematics
1 answer:
serg [7]3 years ago
3 0

Answer:


Step-by-step explanation:

(300 * 0.1) = (0.05 * x) + (0.25 * (300 - x))

30 = 0.05x + 75 - 0.25x

-45 = -0.2x

x = 225.

So there would be...

<h2>225 milliliters of 5% solutions</h2><h2>and</h2><h2>75 milliliters of 25% solutions.</h2><h2 /><h2>Feel free to contact me if you have issues or difficulties.</h2>
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Answer:

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Step-by-step explanation:

The critical values for a two tailed test are the values of t that are placed in the limit of the significance level. If the test statistic t is greater than this critical values, the null hypothesis is rejected.

To determine this values, we first divide the significance level by 2. With a t-table or app, we can determine the t values for P(x>|t|)=α/2=0.05.

In this case, for a degrees of freedom DF=20-2=18, we have the test statistic t=±1.7341 that satisfies the condition.

Solution of the hypothesis test

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The P-value for a two-tailed test for a t=4.0377 and DF=18 is:

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