exam
Maths Puzzle
Numerical Ability
A coin purse contains an equal number of nickels, dimes and quarters. The total amount of money in the purse is 720 cents. How many quarters are in the coin purse?
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I am very stuck can someone pleas help me?
Science and medicine. A plane flies 720 mi against a steady 30-mi/h headwind
and then returns to the same point with the wind. If the entire trip takes 10 h, what is the plane’s speed in still air?
Problem#44 Section: 5.3
Find the perimeter of the given figure
the figure is a rectangle on the top for the width it has :
(x)/(2x-5)
the figures height is:
(8)/(