Question

rozwiąż równania ( kl. V) : 1 2/3 - 5c = 1 1/4 i to drugie : 1/2p :1 3/4 = 8

Answer 1

a)

 

1i2/3 -5c= 1i 1/4

5/3 -5c= 5/4

5/3-5/4=5c

20/12-15/12 = 5c

5/12= 5c |:5

c= 1/12

 

b)

 

1/2p:1i3/4=8

1/2p: 7/4=8 |* 7/8

1/2p= 7|*2

p=14