Question

(3 1/3 * 1,3 -7,2 *2/27 -9,1 :3,5): 2/5

Answer 1

Пожалуйста, всего наилучшего!)

Answer 2

To solve this expression, we need to follow the order of operations (also known as PEMDAS):

1. Parentheses
2. Exponents
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's break down the expression step by step:

3 1/3 can be written as an improper fraction:

3 1/3 = (3*3 + 1)/3 = 10/3

So the expression becomes:

(10/3 * 1.3 - 7.2 * 2/27 - 9.1 ÷ 3.5) ÷ (2/5)

Next, we need to simplify the multiplication and division operations within the parentheses:

• 10/3 * 1.3 = 13.33 recurring (rounded to 2 decimal places)
• 7.2 * 2/27 = 0.64 (rounded to 2 decimal places)
• 9.1 ÷ 3.5 = 2.6 recurring (rounded to 1 decimal place)

So the expression becomes:

(13.33 - 0.64 - 2.6) ÷ (2/5)

Next, we need to simplify the subtraction within the parentheses:

• 13.33 - 0.64 - 2.6 = 9.09 (rounded to 2 decimal places)

So the expression becomes:

9.09 ÷ (2/5)

Next, we need to simplify the division by the fraction 2/5:

To divide by a fraction, we multiply by its reciprocal. So:

9.09 ÷ (2/5) = 9.09 * (5/2) = 22.725

Therefore, the final answer is 22.725.