genyjoannerubiera
24.07.2019 •
Mathematics
What is the percentage change from 12 to 15
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Ответ:
Ответ:
15/12
1.25
Now, we need to change it to an actual percentage.
It’s an increase, so the digits after the decimal place will tell how much of an increase it is.
It’s a 25% increase from 12 to 15.
Ответ:
8x:3x - number of blue chips is doubled
8x-3x=15
5x=15
x=3
So, there are 9 red chips