Question

( 64 1/11 : 4 6/11 - 0,8 ) × 6,5 + 10,81​

Answer 1

Ответ:

21,45

Пошаговое объяснение:

( 64 1/11 : 4 6/11 - 0,8 ) * 6,5 + 10,81​

1)

64 1/11 : 4 6/11=((64*11+1)/11)*(11/(4*11+6))=705/50=141/10=14,1

2)14,1-0,8=13,3

3) 13,3*6,5=10,64

4) 10,64+10,81=21,45

Answer 2

To solve the expression (64 1/11 : 4 6/11 - 0.8) × 6.5 + 10.81, we'll break it down step by step.

Step 1: Convert mixed numbers to improper fractions: 64 1/11 = (11 * 64 + 1) / 11 = 705/11 4 6/11 = (11 * 4 + 6) / 11 = 50/11

Step 2: Simplify the expression inside the parentheses: (705/11 : 50/11 - 0.8) × 6.5 + 10.81

Step 3: Perform the division inside the parentheses: 705/11 ÷ 50/11 = (705/11) * (11/50) = 705/50 = 14.1

Step 4: Substitute the division result back into the expression: (14.1 - 0.8) × 6.5 + 10.81

Step 5: Simplify the expression inside the parentheses: (14.1 - 0.8) = 13.3

Step 6: Perform the remaining operations: 13.3 × 6.5 + 10.81 = 86.45 + 10.81 = 97.26

Therefore, the value of the expression (64 1/11 : 4 6/11 - 0.8) × 6.5 + 10.81 is 97.26.