SOLUTION: A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist uses 255

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Question 615637: A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist uses 255 milliliters of compound A, how many milliliters of the drug will be made?






Found 2 solutions by stanbon, MathTherapy:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist uses 255 milliliters of compound A, how many milliliters of the drug will be made?
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4:5 is the same as 4x:5x where 4x is compound A and 5x is compound B.
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Solve for "x":
If amount of compound A is 4x = 255
x = 255/4
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Then amt of compound B is 5x = 5(255/4) = 318.75 ml
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Cheers,
Stan H.
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Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!
A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist uses 255 milliliters of compound A, how many milliliters of the drug will be made?

A%2FB+=+A%2FB

5%2F4+=+255%2FB

5B = 255 * 4

Amount of compound B that will be used = %28255%284%29%29%2F5, or %2851cross%28255%29%284%29%29%2F1cross%285%29, or 51 * 4, or 204

Total amount of the drug that will be made = amount of compound A + amount of compound B, or 255 + 204, or highlight_green%28459%29 mL

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