90 + 25 = 115
It is: (90-25)-25 = 40
67.5
326 (90 + 236)
It is: (90-42)+24 = 72
171.6
90 is a composite number because it has more than two factors
You can easily figure these kind of problems out. Your first clue to your total is that you're looking for the percent of 90 that is 115. Since 115 is already greater than 90 you know your percent is going to be more than 100%, which is 90. 115 - 90 = 25 Now we have 25 remaining of 90. 25 ÷ 90 = 0.277 or 28%. 100% + 28% = 128%
90 is one such number.
20 occurs more than any other number, so it is the mode.
30
The original number is 10 because: 10 squared = 10+90
No.If an angle is acute, it is less than 90 degrees.Its complement is the number of degrees needed to total 90.Its supplement is the number if degrees needed to total 180, which is 90 more than its complement.