18.15-(3.5-1.75)
1个回答
18.15-(3.5-1.75)
=18.15-1.75
=16.4
相关问题
18.15-(3.5-1.75)=
(15√1/3+√45)(√75—15√1/5)
1/4x(4.85÷5/18-5.15x3又3/5)+{5.5-1.75x(1又2/3+19/21)}
(-18.65)+(-6.15)+18.75+(+6.15)
[1/4]×(4.85÷[5/18]-3.6+6.15×335)+[5.5-1.75×(1[2/3]+[19/21])]
[1/4]×(4.85÷[5/18]-3.6+6.15×335)+[5.5-1.75×(1[2/3]+[19/21])]
计算:2×(18.5-3.15)+6.6÷(0.75-0.2)=
1=5 2=15 3=75 4=2150 5=?
1=5 2=15 3=75 4=525 5=?
5x+18=43 18—3x=15 x—20%X=5 4分之3X+6分之1x=22 X乘(1—75%)=3.2 25%+