Question

−15,2−7,22:−2⋅(−2,5) 14⋅21−14⋅7:14⋅28 7⋅5:−20⋅(−0,2)

Answer 1

Покрокове пояснення:

1.-24,225

2.293,75

3.0,35

Answer 2

It seems like you've provided a series of mathematical expressions. Let's go through them one by one:

1. -15.2 - 7.22: -2 * (-2.5) Result: -15.2 - 7.22 = -22.42 -2 * (-2.5) = 5.0 Final Result: -22.42 + 5.0 = -17.42

2. 14 * 21 - 14 * 7: 14 * 28 Result: 14 * 21 = 294 14 * 7 = 98 14 * 28 = 392 Final Result: 294 - 98 = 196 196 / 392 = 0.5

3. 7 * 5: -20 * (-0.2) Result: 7 * 5 = 35 -20 * (-0.2) = 4.0 Final Result: 35 / 4.0 = 8.75

So, the results of the given expressions are:

1. -15.2 - 7.22: -2 * (-2.5) = -17.42
2. 14 * 21 - 14 * 7: 14 * 28 = 0.5
3. 7 * 5: -20 * (-0.2) = 8.75