Question

3 7/9÷x+2 2/15÷y если x=2 5/6 ,y=0,8​

Answer 1

Ответ:1)3 8\9 2)1\6

Пошаговое объяснение:

Answer 2

To solve the given expression, you can substitute the values of x and y and then perform the calculations step by step. Let's plug in the values and simplify the expression:

Given expression:

$\frac{3\frac{7}{9}}{x} + \frac{2\frac{2}{15}}{y}$

Substitute $x = 2\frac{5}{6}$ and $y = 0.8$ into the expression:

$\frac{3\frac{7}{9}}{2\frac{5}{6}} + \frac{2\frac{2}{15}}{0.8}$

Now let's simplify each fraction:

For the first fraction:

$\frac{3\frac{7}{9}}{2\frac{5}{6}} = \frac{34}{9} \div \frac{17}{6} = \frac{34}{9} \times \frac{6}{17} = \frac{12}{3} = 4$

For the second fraction:

$\frac{2\frac{2}{15}}{0.8} = \frac{32}{15} \div 0.8 = \frac{32}{15} \times \frac{10}{8} = \frac{64}{12} = \frac{16}{3}$

Now the expression becomes:

$4 + \frac{16}{3}$

To add these fractions, you need a common denominator:

$\frac{4 \times 3}{3} + \frac{16}{3} = \frac{12 + 16}{3} = \frac{28}{3}$

So, when $x = 2\frac{5}{6}$ and $y = 0.8$, the expression evaluates to $\frac{28}{3}$, which is approximately 9.3333.