Question

1)2,7:0,09; 3)5,72:0,052; 5)18:0,005; 7)3,24:0,18; 9)0,0869:0,011

Answer 1

1)30
3)110
5)3600
7)18
9)7,9

Answer 2

It seems like you've provided a list of mathematical expressions in a somewhat unusual format. Each expression appears to be divided into two parts, separated by a colon ":". The first number in each expression appears to be a dividend, and the second number is a divisor. The result of the division is not explicitly calculated, but I assume you're looking for the quotient. Let's calculate the quotients for each expression:

1. $\frac{2}{7} = 0.285714...$
2. $\frac{3}{5.72} = 0.523076...$
3. $\frac{5}{18} = 0.277777...$
4. $\frac{7}{3.24} = 2.160493...$
5. $\frac{9}{0.0869} = 103.556273...$

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