急求数学题!要过程!!!

2024-12-26 03:38:31
推荐回答(2个)
回答1:

1.甲乙实际没有比计划多分,只有丙实际分得5/(7+6+5)比计划分得3/(5+4+3)多了1/36
8/(1/36)=288,288*5/(7+6+5)=80(块)
2.。①(1/12+1/13)×6+7÷13 =6/12+6/13+7/13=1/2+(6/13+7/13)=1/2+1=1又1/2
②3.6-1/2(x-3)=1/10 左右两边乘以10
36-5(x-3)=1
5x-15=36
x=51/5
3(1). (1/5)/(5/6)
(2)1/[(3/8)/6]
4.20/[(9-8)/9]=180(个)180/(3/16)=960(个)
5.男(152-5)/[(1-1/11)*2+1/11]=77(人)女152-77=75(人)

回答2:

打字太慢,用语音吧