Question

calculeaza [1,2+1,(3)×3 pe 20]÷0,14×2

Answer 1

[1,2+1,(3)× 3/20]÷0,14×2 =
= ( 1,2 + 4/3 × 3/20 ) : 0,14 × 2 =
= ( 6/5 + 1/5 ) : 7/50 × 2 =
=  7/5 : 7/50 × 2 =
= 7/5  × 50/7 × 2 =
= 1/5 × 50 × 2 =
= 10 × 2 = 20