Solve.
-The sum of a student's three scores is 225. If the first is 20 points more than the second, and the sum of the first two is 24 more than twice the third, what was the first score?
A) 69
B) 89
C) 47
D) 67

Question

Quizplus · Accepted Answer

The first score is 89. Let the scores be x (first), y (second), and z (third). We have x = y + 20, x + y = 2z + 24, and x + y + z = 225. Solving these equations gives us the first score as 89.

Solve. -The Sum of a Student's Three Scores Is 225. If