Expanded Notation of 90 = (9 x 101) + (0 x 100)
You mean "What percentage is 90 million of 5 billion?" If so, [(90 x 10^6) x 100] / (5 x 10^9) = (9 x 10^9) / (5 x 10^9) = 9/5 = 1.8%
90 hundreds = 90 x 100 = 9000 Number of thousands in 9000 = 9000/1000 = 9
90 x 90 = 8,100
90 = (9 x 10) + (0 x 1)
90 + 9% = 90 x (1 + (9/100)) = 90 x 1.09 = 98.1
9 x 10 = 90 or 15 x 6 = 90 or 30 x 3 = 90 0r 45 x 2 = 90 3 x 30 = 90
-10 x -9 = 90 90 - 18 = 72
3 and 9 81 = 3 x 27 = 9 x 9 90 = 3 x 30 = 9 x 10
The lowest common multiple of 9, 6 and 30 is 90. 9 x 10 = 90, 6 x 15 = 90 and 30 x 3 = 90.
Well, darling, if you can't figure out what times 9 equals 90, then we've got bigger problems on our hands. The answer is 10, in case you were wondering. But hey, no judgment here - math can be a real pain in the behind sometimes.
Expanded Notation of 90 = (9 x 101) + (0 x 100)
90 x 1 = 90 10 x 9 = 90 45 x 2 = 90 30 x 3 = 90 18 x 5 = 90 15 x 6 = 90
27 x 90/100 = 27 x 9/10 = 27/10 x 9 = 2.7 x 9 = 24.3
10% of $90 = 10% x $90 = 0.10 x $90 = $9
You mean "What percentage is 90 million of 5 billion?" If so, [(90 x 10^6) x 100] / (5 x 10^9) = (9 x 10^9) / (5 x 10^9) = 9/5 = 1.8%
90% = 90/100 = 9/10 90 x 9/10 = 81