Question

Знайти значення виразу 2,3+0,8-54×1,6= (3,126-1,7)×(0,15+7,4)=

Answer 1

1 ) -83,3, 2 ) 107663

Answer 2

2,3+0,8-54×1,6=-83,3
54×1,6=86,4
0,8-86,4=-85,6
2,3+(-85,6)=-83,3

(3,126-1,7)×(0,15+7,4)=10,7663
3,126-1,7=1,426
0,15+7,4=7,55
7,55×1,426=10,7663

Answer 3

To find the value of the expressions, let's break them down step by step:

1. Expression 1: 2.3 + 0.8 - 54 × 1.6

Step 1: Perform the multiplication first: 54 × 1.6 = 86.4

Step 2: Perform the addition and subtraction: 2.3 + 0.8 - 86.4 = -83.3

So, the value of the first expression is -83.3.

2. Expression 2: (3.126 - 1.7) × (0.15 + 7.4)

Step 1: Perform the subtraction and addition within parentheses: (3.126 - 1.7) = 1.426 (0.15 + 7.4) = 7.55

Step 2: Perform the multiplication: 1.426 × 7.55 = 10.7573

So, the value of the second expression is approximately 10.7573.

Therefore, the final values of the expressions are:

1. 2.3 + 0.8 - 54 × 1.6 = -83.3
2. (3.126 - 1.7) × (0.15 + 7.4) ≈ 10.7573