lindamillscotton90
02.02.2021 •
Mathematics
if equal amounts of a 50% alcohol solution and a 20% alcohom somution are mixed, what percentage of the mixture is alcohol
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Ответ:
60%
Is NOT RIGHT
Step-by-step explanation:
I don’t know
Ответ:
The number is 84
Step-by-step explanation:
Assume the unknown number is x
The question interprets to 2x - 14 = 154
Collecting like times, we have 2x = 154 + 14
2x = 168 divide both sides by 2, which is the coefficient of x
x = 168/2
x = 84