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skelet666 [1.2K]

3 years ago

11

How many ounces of a 17 % alcohol solution must be mixed with 4 ounces of a 20 % alcohol solution to make a 19 % alcohol sol

ution?

1 answer:

andre [41]3 years ago

5 0

Answer:

4 ounces

Step-by-step explanation:

Let the required amount is x.

<u>Alcohol content is same at the end:</u>

x*0.17 + 4*0.2 = (x + 4)*0.19
0.17x + 0.8 = 0.19x + 0.72
0.19x - 0.17x = 0.8 - 0.72
0.02x = 0.08
x = 0.08/0.02
x = 4

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Answer:

8 months for cost to be same, cost will be $408

Step-by-step explanation:

x = months

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3 years ago

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3 years ago

A recently published study shows that 50% of Americans adults take multivitamins regularly. Another recent study showed that 20.

Stels [109]

Answer:

The probability that a randomly selected American adult takes multivitamins regularly and works out regularly is 0.103

Step-by-step explanation:

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3 0

3 years ago

Is the square root of 25 a rational number? Explain how you know

adelina 88 [10]

yes because 25 divided by 5 equals 5

4 0

3 years ago

Read 2 more answers

By finding the size of each exterior angle of a regular polygon with 24 sides, calculate the size of each interior angle of the

Dima020 [189]

We can find the sum of the interior angles of a regular polygon using the formula : (n-2) x 180, where n is the number of sides.

We replaced in : (24-2) x 180 = 3960

So, all the interior angles in this polygon add up to 3960.
-> Each interior angle is equal to 3960 : 24 = 165.

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2 years ago