An examination paper consists of 40 questions
5 marks are given for every correct answer
3 marks are deducted for every wrong answer
Kenny answered all of the questions and got x correct and y incorrect
His total score for the examination was 56 marks
I) Write 2 equations to represent the info above
2)Solve the equation to find out how many kenny answered correctly

Adithi
x+y=40
5x3y=56
3x+3y=120
5x3y=56
8x=176
x=22
(22)+y=40
y=4022
y=18

Renitha R
I know the answer but why is it 5x3y @adithi

EA01
I hate algebra so much

Renitha R
@ea01 omg same

Adithi
We know that kenny got 56 marks in his test. Every time he gets an answer right he gets 5 marks and every time he gets an answer wrong, he loses 3 marks. His result of 56 marks is all the marks for the questions he got right so (x*5). And then you have to take away the marks he loses because he got a question wrong so that is (3*y)

niallsheedy
X represents the number of questions he got right and y represents the number of questions he got wrong

Renitha R
Thanks sm

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