3 1/5 * ( 2,4 * 5/8 * ( 2/3 - 7,15 + 14 :2,8 * 0,17) +6,84 : 1,9)= 4 * 0,375 + 2,5

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вопрос

To solve this expression, we will start by simplifying the innermost parentheses first.

2/3 - 7.15 + 14 ÷ 2.8 0.17
2/3 - 7.15 + 14 ÷ 2.8 0.17
0.67 - 7.15 + 5
–6.48 + 5
= -1.48

Now substitute the simplified value back into the expression:

3 1/5 ( 2.4 5/8 (-1.48) + 6.84 ÷ 1.9) = 4 0.375 + 2.5

Next, we will simplify the remaining parts of the expression:

3 1/5 = 16/5

16/5 (2.4 5/8 (-1.48) + 6.84 ÷ 1.9) = 4 0.375 + 2.5
16/5 (2.4 0.625 (-1.48) + 3.6) = 4 0.375 + 2.5
16/5 (-2.232 + 3.6) = 4 0.375 + 2.5
16/5 * 1.368 = 1.5 + 2.5
22.848/5 = 4
4.5696 = 4

Therefore, the correct answer is 4.