Question

2,5*(3*100,2 - 4) - 5*(2 + 3,1*100,2) + (100,2 - 7)*3

Answer 1

Ответ:

-542

Пошаговое объяснение:

2.5 * (3 * 100.2 - 4) - 5 * (2 + 3.1 * 100.2) + (100.2 - 7) * 3 =
2.5 * (300.6 - 4) - 5 * (2 + 310.62) + (100.2 - 7) * 3 =
2.5 * 296.6 - 5 * 312.62 + 93.2 * 3 =
741.5 - 1563.1 + 279.6 = -542

Answer 2

To solve the given expression:

2,5 * (3 * 100,2 - 4) - 5 * (2 + 3,1 * 100,2) + (100,2 - 7) * 3

Let's break it down step by step:

Step 1: Simplify the innermost parentheses: 3 * 100,2 = 300,6 3,1 * 100,2 = 310,02 2 + 310,02 = 312,02 100,2 - 7 = 93,2

The expression becomes: 2,5 * (300,6 - 4) - 5 * (312,02) + (93,2) * 3

Step 2: Perform the remaining multiplications and subtractions within parentheses: 300,6 - 4 = 296,6 312,02 * 5 = 1560,1 93,2 * 3 = 279,6

The expression simplifies to: 2,5 * 296,6 - 1560,1 + 279,6

Step 3: Perform the multiplications and additions/subtractions: 2,5 * 296,6 = 741,5 741,5 - 1560,1 = -818,6 -818,6 + 279,6 = -539

Therefore, the value of the expression 2,5 * (3 * 100,2 - 4) - 5 * (2 + 3,1 * 100,2) + (100,2 - 7) * 3 is -539.