求解方程的过程10%=[8%×100/55×(1-X)]/[1- 8%×100/55×(1-X)]
求解方程的过程10%=[8%×100/55×(1-X)]/[1- 8%×100/55×(1-X)]
日期:2021-06-07 02:48:23 人气:1
10%=[8%×100/55×(1-X)]/[1- 8%×100/55×(1-X)]
解:
10%=[8/55-8X/55]÷[1-8/55-8X/55]
[1-8/55-8X/55]×0.1=8/55-8X/55
8X/55-8X/550=8/55-0.1
72X/550=25/550
X=25/72
解:
10%=[8/55-8X/55]÷[1-8/55-8X/55]
[1-8/55-8X/55]×0.1=8/55-8X/55
8X/55-8X/550=8/55-0.1
72X/550=25/550
X=25/72