Question

(7,4×2,8-7,4×1,9):0,4

Answer 1

(7,4 × 2,8 - 7,4 × 1,9) : 0,4 =

= [ 7,4 × (2,8 - 1,9) ] : 0,4 = (7,4 × 0,9) : 0,4 =

= 6,66 : 0,4 = 66,6 : 4 = 16,65

Answer 2

Let's break down the expression step by step:

$7.4 \times 2.8 - 7.4 \times 1.9$: First, we perform the multiplications and subtractions inside the parentheses. $= 20.72 - 14.06$ $= 6.66$

Next, we divide the result by 0.4: $6.66 \div 0.4$ $= 16.65$

Therefore, the result of the given expression $(7.4 \times 2.8 - 7.4 \times 1.9) \div 0.4$ is $16.65$.