qudoniselmore0
30.09.2021 •
Mathematics
A: b = 1:5
a:c=2:1
How many times bigger is b than c ?
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Ответ:
B is 9 times C
Step-by-step explanation:
Ответ:
18.75g
Step-by-step explanation:
The reason this is right and not the other answer is because you are supposed to multiply by 0.25 not 0.75. When you multiply by 0.75 you get how much of the contaminants are gone. Not how much is still left.
You can use the same equation as above, but you will need to plug in 0.25 where 0.75 is. I'm working on this problem and got it wrong and my teacher said that was my only mistake. :))