Question

А) (-24,3):(4,5-4,5*(-0,8)):0,5 б)12,5*(-3,6+3,6*(-1,5))*(-0,8)

Answer 1

Пошаговое объяснение:

Решение на фото.............

Answer 2

Let's simplify the given expressions:

A) (-24,3):(4,5-4,5*(-0,8)):0,5

First, let's calculate the value inside the inner parentheses:

4,5*(-0,8) = -3.6

Now, substitute this value back into the expression:

(-24.3) / (4.5 - (-3.6)) / 0.5

Since division should be performed from left to right, let's simplify the numerator first:

(-24.3) / (4.5 + 3.6) / 0.5

Next, we add the values inside the parentheses:

(-24.3) / (8.1) / 0.5

Perform the division:

-24.3 / 8.1 / 0.5 = -3 / 0.5

Finally, divide the numerator by the denominator:

-3 / 0.5 = -6

Therefore, the value of expression A is -6.

B) 12.5*(-3.6+3.6*(-1.5))*(-0.8)

First, let's calculate the value inside the inner parentheses:

3.6 * (-1.5) = -5.4

Now, substitute this value back into the expression:

12.5 * (-3.6 + (-5.4)) * (-0.8)

Perform the addition inside the parentheses:

12.5 * (-9) * (-0.8)

Next, multiply the values:

-112.5 * (-0.8) = 90

Therefore, the value of expression B is 90.