Answer:
50%
Step-by-step explanation:
If there are 5 out of 10 marbles that are red, then there are [tex]10-5 =5[/tex] marbles that aren't red.
This makes the fraction [tex]\frac{5}{10}[/tex]. Converting a fraction to a percent is simple - divide the numerator by the denominator and multiply by 100.
[tex]5 \div 10 = 0.5\\\\0.5 \cdot 100 = 50[/tex]
So 50% of the marbles aren't red.
Hope this helped!
