Ivana wants to give books from her store to the local library. She needs to place 8 books in each box. If she has 1,125 books to
give away, how many boxes will she need
1 answer:
Answer:
140.625
Step-by-step explanation:
1125 books, placed into 8 per boxes, 1125/8=140.625
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use pythagorean thm to doubke check answer
1/2 * n * (n+1) = 1081
distribute
1/2 n^2 +1/2n -1081=0
factor out 1/2
1/2 (n^2 +n -2162) =0
multiply each side by 2
(n^2 +n -2162) =0
factor
(n-46) (n+47) =0
n=46, n=-47
n cannot be negative
n=46
Answer 46
