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otez555 [7]
3 years ago
8

There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist wants to make 495 milliliters, ho

w many milliliters of compound A are needed
Mathematics
1 answer:
bija089 [108]3 years ago
8 0

Answer:

275

Step-by-step explanation:

Since there are 4 mm of B for every 5 mm of A that means there are 9 parts in that. Dividing 495 by 9 you get 55 which is how much of each part of the compound there is. Since there are 5 mm of A in each part of A you multiply 5 by 55 to get 275 which is your answer.

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