Sonya got 8 out of 10 questions right on a quiz she got the same score on a quiz that had 20 questions how many questions did sonia get right on the second quiz how many questions did she get wrong on the second quiz

Sonya got 8 out of 10 questions right on a quiz.

This is a score of × 100 = 80%

She got the same score on a quiz that had 20 questions.

So 80% of 20 questions were correct = × 20 = 16 questions.

So she got 16 questions right on the second quiz and;

20 - 16 = 4 wrong questions on the second quiz.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,