fluffypuppies24
03.08.2019 •
Mathematics
Acertain drug is made from only two ingredients: compound a and compound b. there are 7 milliliters of compound a used for every 5 milliliters of compound b. if a chemist uses 295 milliliters of compound b, how many milliliters of the drug will be made?
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Ответ:
so if there was 295 mL of compound B...
7 / 5 = a / 295
cross multiply
(5)(a) = (295)(7)
5a = 2065
a = 2065/5
a = 413 so 413 mL of compound A would be used
for a total solution of (295 + 413) = 708 mL solution <===
Ответ:
$8.30
Step-by-step explanation: