给4道解比例,帮我解.1/2:1/3=1/4:x (6+x):4=9:50.75/x=3/240%/x=120%/2
问题描述:
给4道解比例,帮我解.
1/2:1/3=1/4:x
(6+x):4=9:5
0.75/x=3/2
40%/x=120%/2
答
给4道解比例,帮我解.
1/2:1/3=1/4:x
(6+x):4=9:5
0.75/x=3/2
40%/x=120%/2