always teacher gave her science test with 25 questions on it she scored 80% on the test how many questions did she answer incorrectly

She got 5 incorrect.

Step-by-step explanation:

In order to find this, we start by using the formula for percentage.

Correct/Total = Percentage

Now we put in known quantities.

Correct/25 =.8

Now to solve we multiply both sides by 25

Correct = 20

Since she got 20 correct, we know she got 5 incorrect

She got 5 incorrect on her test