Question

18:(2.3/9+1.6/9)+2,5*0,4

Answer 1

Доброго вечора!

18 : ($\frac{2,3}{9}$ + $\frac{1,6}{9}$) + 2,5 * 0,4 = $\frac{18}{9}$ : $\frac{3,9}{9}$ + 1 = $\frac{4,6}{9}$ + 1 = 1$\frac{4,6}{9}$

Answer 2

Ответ:

Будет $42\frac{7}{13}$

Пошаговое объяснение:

$18 \div (\frac{23}{90} +\frac{16}{90}) + 2,5 \times 0,4=\\ \\ =18\div\frac{23+16}{90} +1=\frac{18}{1} \div\frac{39}{90} +1=\frac{18}{1} \div\frac{13}{30} +1=\\ \\ =\frac{18}{1} \times \frac{30 }{13} +1=\frac{540}{13} +1=\\ \\ =\frac{1\times13+540}{13} =\frac{553}{13} =42\frac{7}{13}$

Answer 3

To solve the expression 18:(2.3/9+1.6/9)+2.5*0.4, follow the order of operations (PEMDAS/BODMAS):

1. First, calculate the values inside the parentheses and addition: 2.3/9 + 1.6/9 = 0.2556

2. Next, calculate the division: 18 / 0.2556 ≈ 70.4803

3. Finally, calculate the multiplication: 2.5 * 0.4 = 1.0

Now, add the results from steps 2 and 3: 70.4803 + 1.0 = 71.4803

So, the final answer is approximately 71.4803.