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The sum of the digits of a two-digit number is 9. If the digits are reversed
The sum of the digits of a two-digit number is 9. If the digits are reversed, the new number is 63 greater than the original number. Find the original number.
The Arnold Inn offers two plans for wedding parties
The Arnold Inn offers two plans for wedding parties. Under plan A, the inn charges $30 for each person in attendance. Under plan B, the inn charges $1,300 plus $20 for each person in excess of the first 25 who attend. For what size parties will plan B cost less?...
If the length of thread on a bolt is equal to twice the diameter
If the length of thread on a bolt is equal to twice the diameter plus 1/4", how much thread would a 1/2" (diameter) bolt have?
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