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What numbers are equal to their reciprocals?
These are numbers x such that x = 1/x. But this means that x2 = 1. Try solving this last equation for x. (i.e. the only numbers are +1 and -1)
What are four consecutive numbers that add up to 162?
Consecutive numbers: x is the first number (x)+(x+1)+(x+2)+(x+3) 4x+6=162 Therefore x=39 Numbers are 39, 40, 41 and 42
What is the minimum product of two numbers whose difference is 22 what are the numbers?
Suppose the smaller of the two numbers is x. Then the other number is x+22. Their product is x*(x+22) = x2 + 22x This has a minimum when 2x = -22 or x = -11. When x = 11, the two numbers are -11 and 11 with a product of -121.
If there are three consecutive numbers and the sum is 81 what are the three consecutive numbers?
Let the second number be x, then the three consecutive numbers are x-1, x, x+1, and their sum is: (x-1) + x + (x+1) = 81 3x = 81 x = 27 So the three numbers are 27-1, 27, 27+1 = 26, 27, 28
How do you find the percent of two numbers?
If you have two numbers, X and Y and you want X as a percentage of Y then the answer is: 100*X/Y
