Question

- 1/3 * 0 ,6+2 1 /2 *(- 1 /5 )=​

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Ответ:

-7/10

Пошаговое объяснение:

1) -1/3 * 0,6 = -1/3 * 6/10 = -6/30 = -1/5

2) 2 1/2 * (-1/5) = 5/2 * (-1/5) = -5/10 = -1/2

3) -1/5 + (-1/2) = -1/5 - 1/2 = -2/10 - 5/10 = -7/10

Answer 3

To solve the expression 1/3 * 0.6 + 2 1/2 * (-1/5), let's break it down step by step:

1. Evaluate 1/3 * 0.6: 1/3 * 0.6 = 0.2 * 0.6 = 0.12

2. Evaluate 2 1/2 * (-1/5): First, convert the mixed fraction 2 1/2 to an improper fraction: 2 1/2 = (2 * 2 + 1)/2 = 5/2

   Now, multiply 5/2 by -1/5: 5/2 * (-1/5) = (5 * -1) / (2 * 5) = -5/10 = -1/2

3. Add the results from steps 1 and 2: 0.12 + (-1/2) = 0.12 - 1/2

To add these fractions, we need a common denominator. The common denominator of 2 and 1 is 2, so we can rewrite the expression as: 0.12 - 1/2 = 0.12 * 2/2 - 1/2 = (0.24 - 1) / 2 = (-0.76) / 2 = -0.38

Therefore, the final result is -0.38.