45 x 28 = 1260
28/45 x 100 = 62.2 %
1. (28 = 2 x 2 x 7, 45 = 3 x 3 x 5)
5 x 5 = 25 2 x 2 x 7 = 28 3 x 3 x 5 = 45
7x+17 = 45 7x = 45-17 7x = 28 x = 4
The LCM of 45, 28, and 150 is 6,300, which is the multiple of the highest power of prime factors from all of the given numbers (22 x 32 x 52 x 7 = 2 x 2 x 3 x 3 x 5 x 5 x 7 = 6300). (Prime factors: 45 = 32 x 5; 28 = 22 x 7; 150 = 2 x 3 x 52)
(2 x 9) + (3 x 9) = 5 x 9 = 45
28/5 x 7/9 = 196/45 = 4 and 16/45
4/5 = 0.80 ...0.80 x 35 = 28
45 - 28 = 17.
1 x 45 = 45 2 x 45 = 90 3 x 45 = 135 4 x 45 = 180 5 x 45 = 225 6 x 45 = 270 7 x 45 = 315 8 x 45 = 360 9 x 45 = 405 10 x 45 = 450 11 x 45 = 495 12 x 45 = 540
28
You would need 1,260 cubic feet of mulch to cover an area of 28 x 45 feet. This is calculated by multiplying the length (28 ft) by the width (45 ft) to get the total square footage (1,260 sq ft) and then multiplying by the desired depth of mulch.