Problema Solution
Reggi receives three points for each correct answer on a test and loses one point for each incorrect answer. He answered all 40 questions on the test and received 60 points. Write a system of equations to find the number of correct and incorrect answered Reggie got on the Test.
Answer provided by our tutors
let
x = the number of correct answers
y = the number of incorrect answers
x + y = 40 (since the total number of questions answered is 40)
3*x - 1*y = 60 (he received 60 points)
by solving the system of equations:
x + y = 40
3*x - 1*y = 60
we find:
x = 25 correct answers
y = 15 incorrect answers
click here to see the step by step solution of the system of equations:
Reggie had 25 correct answers and 15 incorrect.