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A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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d) On average, the post office processes 45.6 letters every hour. How many letters can the office process during the 9 hours it is open? e) During Christmas, the post office opens 12 hours a day. Compared to usual days, how many more letters can the post office process? 6) A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? 7) Children has to pick their favourite sport from basketball, football and hockey. 3 chose basketball and - chose hockey. What percentage chose football? 10 4 8) In a fruit survey, children choose their favourite fruit out of apples, bananas and watermelon. 29% chose apples and chose bananas. What percentage chose watermelon?
Transcribed Image Text:d) On average, the post office processes 45.6 letters every hour. How many letters can the office process during the 9 hours it is open? e) During Christmas, the post office opens 12 hours a day. Compared to usual days, how many more letters can the post office process? 6) A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? 7) Children has to pick their favourite sport from basketball, football and hockey. 3 chose basketball and - chose hockey. What percentage chose football? 10 4 8) In a fruit survey, children choose their favourite fruit out of apples, bananas and watermelon. 29% chose apples and chose bananas. What percentage chose watermelon?
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