1.5 * 90 = n 135 = n
90
90 is the 100%.100% :N = 30% : 2730%N = 27 (100%)N = 27(100%)/30%N = 2700/30N = 90
90
270
-45
1.5 * 90 = n 135 = n
90% = 90/100 = 0.9 90% of n = 36 0.9 x n = 36 n = 36 / 0.9 = 40 36 is 90% of 40.
Let the two numbers be 'm' & 'n' Sum = m + n = -9 Product is mn = -90 Hence m = -90/n Substitute -90/n + n = -9 Multiply through by 'n' -90 + n^2 = - 9n n^2 + 9n - 90 = 0 It is now in quadratic form ; factor (n + 15)(n - 6) = 0 n = -15 & n = 6
6 x n = 90 n = 15
If: n squared -n -90 = 0 Then the solutions are: n = 10 or n = -9
90
equator latitude:0 n pole:90 n s pole:90 s
90 is the 100%.100% :N = 30% : 2730%N = 27 (100%)N = 27(100%)/30%N = 2700/30N = 90
Let the consecutive i9ntegers be ; n, n+1, n+2, n+3 Hence n+(n+1) +(n+2)+(n+3) = 90 Add the LHS 4n + 6 = 90 4n = 84 n = 84/4 = 21 Hence The four integers are , 21,22,23,24,
90
270