Question

Г) 4,7 - (-2) – (-1,5)д) 13 - 13 +18е) -7 2/15+4 1/6-1,2​

Answer 1

Ответ:

мжомжосдпчщпчлпчдпчпчпл

Пошаговое объяснение:

треееееешшшшшш...

Answer 2

Let's solve each expression step by step:

Г) $4.7 - (-2) - (-1.5)$

$4.7 + 2 + 1.5$ $= 8.2$

д) $13 - 13 + 18$

$0 + 18$ $= 18$

е) $-7 \frac{2}{15} + 4 \frac{1}{6} - 1.2$

To add and subtract mixed numbers, it's often easiest to first convert them into improper fractions:

$-7 \frac{2}{15} = -\frac{107}{15}$ $4 \frac{1}{6} = \frac{25}{6}$

Now, let's rewrite the expression:

$-\frac{107}{15} + \frac{25}{6} - 1.2$

First, find a common denominator for the fractions:

The common denominator for $15$ and $6$ is $30$.

$-\frac{214}{30} + \frac{125}{30} - \frac{36}{30}$

Now, combine the fractions:

$-\frac{214 + 125 - 36}{30}$

$-\frac{125}{30}$

Reducing the fraction by dividing both the numerator and denominator by $5$:

$-\frac{25}{6}$

Finally, adding $-\frac{25}{6}$ to $-1.2$:

$-\frac{25}{6} - 1.2$

To combine these, you'll want to get a common denominator:

$-\frac{25}{6} = -\frac{25 \cdot 5}{6 \cdot 5} = -\frac{125}{30}$

$-\frac{125}{30} - \frac{6 \cdot 1.2}{6 \cdot 1.2} = -\frac{125 - 72}{30} = -\frac{53}{30}$

So, the final result for $е)$ is $-\frac{53}{30}$.