630/810 = 7/9
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∙ 11y ago90 180 270 360 450 540 630 720 810 900 1080
90, 180, 270, 360, 450, 540, 630, 720, 810, 900, 990, 1080, . . .
(6 * 30) + (15 * 42) = 180 + 630 = 810.
630/30 = 21/1 = 21
First of all, percent means in "one hundred". So 30% is the same as 30/100, which we can reduce to 3/10 or 0.3. To figure out what 30% of 810 is, you simply multiply:3/10 x 810 = 2430/10And then divide:2430 / 10 = 243
90, 180, 270, 360, 450, 540, 630, 720, 810, 900.
90 180 270 360 450 540 630 720 810 900 1080
90, 180, 270, 360, 450, 540, 630, 720, 810, 900, 990, 1080, . . .
(6 * 30) + (15 * 42) = 180 + 630 = 810.
810/900 = 0.9
90, 180, 270, 360, 450, 540, 630, 720, 810, 900, 990, 1080, ..
90, 180, 270, 360, 450, 540, 630, 720, 810, 900
90, 180, 270, 360, 450, 540, 630, 720, 810, 900 +90 . . .
1 it is 90 180 270 360 450 540 630 720 810 900
90, 180, 270, 360, 450, 540, 630, 720, 810, 900
90, 180, 270, 360, 450, 540, 630, 720, 810, 900.
This is all of them: 180, 270, 360, 450, 540, 630, 720, 810, 900 and 990.