Answer: [tex]70.37\%[/tex]
Step-by-step explanation:
Let be "x" the percentage of apples that were actually good for consumption.
You know that total number of apples the farmer harvested was 270 apples.
Then, you can identify that 270 apples represents the [tex]100\%[/tex]
You know that 80 of them were unfit for consumption, so the number of apples that were good for consumption was:
[tex]270\ apples-80\ apples=190\ apples[/tex]
Then, you can set up the following proportion in order to find the percentage of apples that were actually good for consumption:
[tex]\frac{100}{270}=\frac{x}{190}[/tex]
Finally, you must solve for "x" in order to find its value. This is:
[tex](190)(\frac{100}{270})=x\\\\x=70.37\%[/tex]
