Question

proszę pomóżcie rozwiązać zadanie z góry bardzo dziękuję (1-7/9)x(5,2-0,7) 123:10+0,2x6,1 (6,5-4,7):(4-2i1/5) (1,5-1i1/3)x2i2/5-0,1 (6,25-1i1/5):2i1/7-1 2/5x5+1/3 3+2x2/5 3/4+1/4x8 8x(1/4+0,25) 1,6-0,6:2 5i1/5-1/5x10

Answer 1

(1-7/9)x(5,2-0,7) = 2/9 x 3.5 = 2/9 x 7/2= 7/9

 

123:10+0,2x6,1= 123/10+2/10x61/10=  123/10+122/100=1230/100+122/100=1352/100=135 i 2/100= 135.002

 

(6,5-4,7):(4-2i1/5)= 1.8 : (3 i 5/5 - 2 i 1/5)= 9/5: 1 i 4/5= 9/5 : 9/5= 9/5 x 5/9= 1

 

(1,5-1i1/3)x2i2/5-0,1= (3/2-4/3) x 12/5 - 0.1= (9/6-8/6)x 12/5 - 0.1=   1/6 x 12/5 - 0.1= 2/5-0.1= 4/10-0.1=0.4-0.1=0.3

 

(6,25-1i1/5):2i1/7-1=(6 i 1/4 - 1 i 1/5) : 15/7 -1= (6 i 5/20 - 1 i 4/20) x 7/15-1=2 i 1/20 x 7/15 - 1=41/20 x 7/15 -1=147/300 - 1=49/100-1=0.49-1=0.51

 

2/5x5+1/3= 2+1/3=2 i 1/3

 

3+2x2/5= 3+4/5=3 i 4/5

 

3/4+1/4x8= 3/4+2=2 i 3/4

 

8x(1/4+0,25)= 8x 1/2=4

 

1,6-0,6:2=8/5-3/5x1/2  = 8/5-3/10=16/10-3/10=1.6-0.3=1.3

 

5i1/5-1/5x10