90 + 600 = 690
23 x 30 = 690
23 x 20 x 30 = 13,800
%rate: = (23/30) x 100% = 0.7667 x 100% = 76.67%
Let x be the unknown. 30% * x = 23 Recall 100% =1. Then 0.3 * x = 23. Divide both sides of the equation by 0.3. x = 23 / 0.3 = 76.67 =====================
23 x 100/30 ie 76.6 recurring
November has 30 days, so 23 of them have 23 x 30 = 690 days.
690
6^30 = 2.21073919720733 x 10^23
(9/10)-(2/15)=x (27/30)-(4/30)=x x=(23/30)
Expressed as a percentage, 23/30 x 100 = 76.6 recurring (that is, 76.6666...) percent.
7 times with 23 remaining 233 - 23 = 210 = 7 x 30
0.3 x 23 = 6.9