exam
Maths Puzzle
Numerical Ability
what percent of one u.s. dollar is $.25?
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exam Other Question
Please explain how are inverses are used to solve linear systems? And if you can add an example or two.
A bank contains 36 nickels, dimes, and quarters. There are 4 more dimes than quarters and twice as many nickels as quarters. How many of each coin are in the bank?