Question

1)(7-2,5)•(3,25+3,35):(10-9,73); 2)(81,8+18,1):(4-0,67)•(0,97+0,28); ПЖ СТОЛБИКОМ!!!!!!!!

Answer 1

все на фото. хорошего вечера!

Answer 2

It seems like you've provided some mathematical expressions, but the formatting is a bit unclear. Let's break down the expressions step by step to solve them:

1. $(7-2.5) \cdot (3.25+3.35) : (10-9.73)$

First, perform the calculations inside the parentheses:

• $7 - 2.5 = 4.5$
• $3.25 + 3.35 = 6.6$
• $10 - 9.73 = 0.27$

Now, substitute these values back into the expression: $(4.5) \cdot (6.6) : (0.27)$

Finally, calculate the result: $(4.5 \cdot 6.6) / 0.27 \approx 111.111$

So, the result of the first expression is approximately $111.111$.

2. $(81.8 + 18.1) : (4 - 0.67) \cdot (0.97 + 0.28)$

First, perform the calculations inside the parentheses:

• $81.8 + 18.1 = 99.9$
• $4 - 0.67 = 3.33$
• $0.97 + 0.28 = 1.25$

Now, substitute these values back into the expression: $(99.9) : (3.33) \cdot (1.25)$

Next, calculate the divisions and multiplications: $\frac{99.9}{3.33} \cdot 1.25 \approx 29.985$

So, the result of the second expression is approximately $29.985$.

Please make sure to double-check the calculations, as I've interpreted the expressions based on the formatting you provided. If the expressions are meant to be calculated differently, please provide clearer formatting or specific instructions.