It is a quadratic expression which can't be factored because its discriminant is less than zero.
2520 as a percent = 252000%= 2520 * 100%= 252000%
30% of 2520 = 2520*30/100 = 756
The easier way to do this problem would be to convert all the fractions to decimal form, and then just add them up, however, that would only give an approximate answer which may not be what is intended. The more precise answer is to convert all these fractions to other, equivalent fractions which all have the same denominator. This requires us first of all to find a common denominator. We do not have to multiply all nine denominators together since some of them are divisible by each other. Anything divisible by 4 is also divisible by 2, any thing divisible by 6 is also divisible by 3, and so forth. I am going to try 2520 (which is 5 x 7 x 8 x 9). 1/2 x 1260/1260 = 1260/2520. 1/3 x 840/840 = 840/2520. 1/4 x 630/630 = 630/2520. 1/5 x 504/504 = 504/2520. 1/6 x 420/420 = 420/2520. 1/7 x 360/360 = 360/2520. 1/8 x 315/315 = 315/2520. And 1/9 x 280/280 = 280/2520. This converts all the fractions into 2520ths. Now we add them up: 1260 840 630 504 420 360 315 280 ___ 4609, so the total is 4609/2520. This does not simplify.
It is: 2520
LCD(2520, 4) = 2520.
168
10 percent of 2520 is 252
The LCM is 2520.
11
2520 yards = 1.43181 miles
60 seconds = 1 minute so 2520 seconds = 2520/60 minutes = 42 minutes.
2520