a math quiz consist of 30 questions. the first 20 questions are worth 4 points each. the last 10 questions are worth 7 points ea ch. no points will be deducted for each wrong answer. Justin scores 124 points on a math quiz. how many of the first 20 questions and how many of the last 10 questions does he answer correctly?
2 answers:
Answer:
25
Step-by-step explanation:
Total points: (20x4) + (10x7) = 150
Justin scored 124/150
150-124 = ones he didn't get correct
150-124 = 26
26 = 4 + 7 + 4 +7 + 4
We are trying to figure out how many he answered <u>correctly</u> <em><u>NOT </u></em> how many he got wrong.
There are 30 questions. He got 5 wrong. That means he got 25 correct.
Answer: He got 17 from the first 20questions and 8 from the last 10 questions
Step-by-step explanation:please see attachment for explanation
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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