Question

Może ktoś zrobić te 2 zadania plis na jutro potrzebuje klasa 7 matematyka​

Answer 1

Odpowiedź:

Zad. 3

A. -2 1/3*(-3/7) = -7/3*(-3/7) = 1/3*3 = 1

B. -2/3*3/2 = -1/3*3 = -1

C. 0,6*(-1 2/3) = 3/5*(-5/3) = -1/5*5 = -1

D. -4 2/3*3 2/3 = -14/3*11/3 = -154/9 = -17 1/9

E. -10*0,1 = -10*1/10 = -1

Zad. 4

a) -1 3/5*(-10) = -8/5*(-10) = 8/5*10 = 8*2 = 16

b) 3,6*(-1/4) = 18/5*(-1/4) = 9/5*-1/2 = -9/10

c) -7*1/7 = -1

d) -3 3/5*(-1 2/3) = -18/5*(-5/3) = 18/5*5/3 = 18*1/3 = 6