question archive Challenge Sarah's history textbook is 16 in
Challenge Sarah's history textbook is 16 in
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Challenge Sarah's history textbook is 16 in. thick and her science textbook is 0.570 in. thick. Which textbook is thicker? Answer this question by changing the fraction to a decimal. There is a total of 21 students in Sarah's science class. Will all of their textbooks for this class fit on a shelf that is 23.2 in. long? Which textbook is thicker? Is 9 O A. The textbooks are equally thick since = 0.570. 16 9 O B. Her science textbook is thicker since <0.570. 16 9 O C. Her history textbook is thicker since > 0.570. 16 Will all of the science textbooks fit on the shelf? Select the correct choice below and fill in the answer box to complete your choice. A. Yes, because the total thickness of all 21 books is |in. O B. No, because the total thickness of all 21 books is in .
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a
9/16 = 0.5625
this is less than 0.570
so science book is thicker (select option B)
b
All textbook for 21 students= (0.5625+0.570)*21= 23.78 inches
This is greater than 23.2, hence all textbooks cannot fit in the shelf.
