You need 300 ml of a 65% alcohol solution. on hand, you have a 50% alcohol mixture. how much of the 50% alcohol mixture and pure alcohol will you need to obtain the desired solution?
you will need
ml of the 50% solution
and
ml of pure alcohol.

step-by-step explanation:

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step-by-step explanation:

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sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation:

he is going to fill two shelves and the third shelf will only have five video games