exam Maths Puzzle Numerical Ability

Addie has $2.15 in her change purse, consisting of nickels, dimes, and quarters. If she has twice as many nickels as quarters and one less dime than quarters, how many of each coin does she have?

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exam Other Question
log5 (base of 5) of x + 3 (no parentheses) = log5 (base of 5) of (x-20) + 4 Determine the coordinates of the midpoint of the line segment whose endpoints are A(-7, 3, 2) and B(1, 5, 1).