1*47=47 Only that equation, because 47 is a prime number. >.>
28 2 27 3 29 1 etc...
One month can equal each of those numbers of days.
That would be equal to the sum of all natural numbers less than or equal to 100 minus the sum of all natural numbers less than or equal to 89. The sum of all natural numbers less than or equal to x can be calculated with this equation: x ∑n = n(n + 1) / 2 n=1 We can take the numbers given above then, and plug them into that sum, giving us the equation: x = 100(100 + 1)/2 - 89(89 + 1) / 2 x = 5050 - 4005 x = 1045
Equation 1: X+Y=30 Equation 2: X-Y=2 Solve Simultaneously: X+Y=30 + X-Y=2 _________ 2X =32 X=16 Solving for Y: substitute the value of X: 16+Y=30 Y=30-16 Y=14 The two (2) numbers are: 16 and 14.
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)
6 and -5
1+30=31 and 1x30=30
1*47=47 Only that equation, because 47 is a prime number. >.>
30 1/3 31 1/3 32 1/3
-17
16 + 9 + 4 + 1
28 2 27 3 29 1 etc...
One month can equal each of those numbers of days.
That would be equal to the sum of all natural numbers less than or equal to 100 minus the sum of all natural numbers less than or equal to 89. The sum of all natural numbers less than or equal to x can be calculated with this equation: x ∑n = n(n + 1) / 2 n=1 We can take the numbers given above then, and plug them into that sum, giving us the equation: x = 100(100 + 1)/2 - 89(89 + 1) / 2 x = 5050 - 4005 x = 1045
1*8*9 + sqrt(4)
square(1+9) - 8/4