book
Maths Puzzle
Numerical Ability
The last page of a book is numbered 764. The book is 3.0 cm thick. What is the average thickness of a sheet of paper in the book, in centimeters?
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book Other Question
Express the statement in terms of an inequality involving an absolute value. The radius r of a ball bearing must be within 0.01 cm. of 1 cm.
I would like to know how to simplify this problem
2 9
_____ + ____
x + 4 5x + 20
the 2 is over the x + 4, and the 9 is over the 5x + 20