Question

Joshua took a math contest with 25 questions. Each correct answer earned 6 points while each incorrect answer deducted 4 points. Joshua answered every question and earned 100 points. How many questions did Joshua answer correctly?

Answer 1

Answer: 20 correct, 5 incorrect

Explanation:

25 question total

Create an equation: 6x(correct) - 4y(incorrect) = 100 (points)

You can guess and check if its easiest for you: 6(20) - 4(5) = 100 points

Check: 120 - 20 = 100 points

100 = 100

Hope this helps :0

Answer 2

Answer: 20 questions

Step-by-step explanation: 6x - (25 - x)*4 = 100