Asked by thania
There are 45 questions in a Mathematics quizbee. For every correct answer, 5 marks are awarded and 3 marks for every wrong answer. If sofia scored 185 points, how many questions did she answer wrongly.
Answers
Answered by
bobpursley
45=R+W
5R+3W=185
Are you certain on the getting 3 marks for every wrong answer? That is an odd way of scoring a math quiz.
R=45-W
5(45-W)+3W=185
225-5W+3W=185
-2W=-40
W=20
5R+3W=185
Are you certain on the getting 3 marks for every wrong answer? That is an odd way of scoring a math quiz.
R=45-W
5(45-W)+3W=185
225-5W+3W=185
-2W=-40
W=20
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