To solve this one, subtract 50 from 180 and you'll have your answer.
When the sum of a number plus 3 is squared, it is 11 more than the sum of the number plus 2 when squared.
the sum of -14 + 29 is 15
the sum of 70 + 30 = 100
2
Sum of divisors of 130 = 252.
4/20 + 2/13 = 26/130 + 20/130 = 46/130 = 23/65
The sum of 20 and 110 is 130.
1+2+3+... +65 = 65*66/2 = 65*33 = 2145 For the required sum, each term is simply double the corresponding term above, so 2+4+6+... + 130 = 2*2145 = 4290
The sum of the equation - 990 + 880+40 +90 +790 +690, is found as follows;990 + 880 +40 +90 +790 +690= (990 + 880) + (40 +90) + (790 + 690)= ( 1870 ) + ( 130 ) + ( 1480 )= 3480Answer = 3480
The sum answer = 3440
The sum is 1511.
7 and 9 72+92 = 130
The sum of 7 plus 71 is 77.
The sum of 75 plus 5 is 80.
The sum of 3 plus 4 is 7.
The sum of 10 plus 8 is 18.