www.rqgq.net > 5%1=0 1+4=0 5+0=5 .什么意思?

5%1=0 1+4=0 5+0=5 .什么意思?

0.5 2/5 37.5% 4/11 5/14 (6/17 ) (35%) 2 1:( 87.5)=0.24 =6/( 25)=(24 )% 一个数的2/7是6,这个数的倒数是(1/21)

解:设需加x公斤的水, 1×5%=(1+x)×0.5% 1×0.05=(1+x)×0.005 0.005+0.005x=0.05 0.005x=0.05-0.005 0.005x=0.045 x=0.045÷0.005 x=9 答:需加9公斤的水。

^这个符号是幂运算,也就是(1+5%)的0.5次方 先进行幂运算,再减1

1.第一层函数:round(X,2)是一个四舍五入到小数点后两位的函数, 2.第二层函数:MAX((a1-3500)*5%*{0.6,2,4,5,6,7,9}-5*{0,21,111,201,551,1101,2701},0),计算的数值是(a2-3500)后的值与相应税级百分数(0,0.03,0.1,0.2……)的乘积减去税率...

(1)53.1÷1%=5310;(2)0 ÷ 11 12 =0; (3)1-5%=0.95;(4)8×4%=0.32;(5)1+12.5%=1.125;(6)l÷25%=4; (7)403×10%=40.3;(8) 1 6 ×36× 1 2 =3 ;故答案为:5310,0,0.95,0.32,1.125,4,40.3,3.

① 20%x=0.7-0.5 0.2x=0.2 x=1 ②0.95x=95 x=100 ③70%x=10 x=10÷0.7 x=100/7 ④ 32%x=40 x=40÷0.32 x=125

解:0.52=0.25, 92=81, 100×0.2%=0.2, 37.5%+12.5%=50%, 0.1÷100=0.001, 2÷4%=50, 30×8%=24, 5÷10%=50, 0.8+1.25=2.05, 3.14×8=25.12, 0.13×4=0.52, 2-1.2=0.8, 72-65=7, 112-102=21, 152÷76%=200, 4×25%=1, 1.47÷7=0.21, 35-...

[56x(5/7-2/8)-0.625x0.5+5/8+1/2x62.5%]÷2又1/4 =(56×5/7-56×2/8-5/8×1/2+5/8+1/2×5/8)÷9/4 =[40-14-5/8]×4/9 =203/8×4/9 =203/18

3÷7= 3 7 10÷0.1=100 32×12.5%=4 8.1÷0.03=270 3 5 + 4 5 = 1 2 5 12- 3 8 = 11 5 8 4 5 × 3 2 = 1 1 5 3 8 ÷ 2 5 = 15 16

(1) 1.2 7.5 = 0.4 x , 1.2x=7.5×0.4,1.2x=3, 1.2x÷1.2=3÷1.2, x=2.5;(2)3x-0.8×75%=2.1, 3x-0.6+0.6=2.1+0.6, 3x=2.7, 3x÷3=2.7÷3, x=0.9;(3)3.2×37.5%+5.3×0.375+1.5× 3 8 ,=(3.2+5.3+1.5)×0.375,=10×0.375,=3.75.

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