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AfilCa [17]
3 years ago
9

Heidi must correctly answer at least 80% of the questions on an exam to advance to the next

Mathematics
1 answer:
Oduvanchick [21]3 years ago
3 0
Given:
must correctly answer 80% of the questions
correctly answered questions = 26
incorrectly answered questions = 4
unanswered questions = 15

Total questions = 26 + 4 + 15 = 45

45 * 80% = 36 required correctly answered questions.

36 - 26 = 10

Out of 15 remaining questions, 10 questions must be correctly answered for Heidi to advance to the next level.
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kykrilka [37]
You can calculate it by divided but most of the people get confused about is it gonna be 12/1.46 or 1.46/12. The correct is 1.46/12 because take the money divided all 12 to get a unit price if you take 12/1.46 which mean divided all ounce can to money and that makes nonsense.


So 1.46/12 = $0.12 for each ounce can

Hope this help!
4 0
3 years ago
Tim install 50 square feet of his floor in 45 mins. At this rate how long does it take him to install 495 square feet. Is that 9
Nimfa-mama [501]

Answer:

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Step-by-step explanation:

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Answer:

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8 0
3 years ago
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Step-by-step explanation:

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4 0
3 years ago
the price of a cup of coffee has dropped to $2.20 today. Yesterday's price was $2.35. Find the percentage decrease. Round your a
notka56 [123]

Answer:

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