Question

Помогите решить пожалуйста Раскройте скобки и найдите значение выражения 8,7+(13,7- 15,2)-(24,6-20,1)

Answer 1

13,7-15,2=-1,5
24,6-20,1=4,5
8,7+(-1,5)=7,2
7,2-4,5=2,7
ответ 2,7

Answer 2

Calculating the Expression 8.7 * (13.7 - 15.2) - (24.6 - 20.1)

To calculate the given expression, we can follow the order of operations, which is parentheses, multiplication, and subtraction. Let's break it down step by step.

1. Calculate the value inside the first set of parentheses: (13.7 - 15.2) - The result of (13.7 - 15.2) is -1.5.

2. Multiply 8.7 by the result from step 1: 8.7 * (-1.5) - The result of 8.7 multiplied by -1.5 is -13.05.

3. Calculate the value inside the second set of parentheses: (24.6 - 20.1) - The result of (24.6 - 20.1) is 4.5.

4. Subtract the result from step 3 from the result from step 2: -13.05 - 4.5 - The final result of the expression 8.7 * (13.7 - 15.2) - (24.6 - 20.1) is -17.55.

Therefore, the value of the given expression is -17.55.