Question

-8,9×(-х)=11,57; 9,6×(-у)=-43,3;-5,3×х=2,340,3×(-х)=-2,34-6,1×у=19,52​

Answer 1

Ответ:

Пошаговое объяснение:

1) -8,9×(-х)=11,57;

8,9×х=11,57

х=11,57:8,9

х=1,3

2) 9,6×(-у)=-43,3;

-9,6×у=-43,3

у=-43,3:(-9,6)

у=433/96

у=4 49/96

3)-5,3×х=2,34

х=2,34:(-5,3)

х=-234/530

х=-117/265

4)-6,1×у=19,52​

у=19,52:(-6,1)

у=-3,2

Answer 2

To solve the system of equations, let's assign variables to each unknown:

Let x = unknown Let y = unknown

1. -8.9 * (-x) = 11.57 Multiplying the left side gives: 8.9x = 11.57 Dividing both sides by 8.9 gives: x = 11.57 / 8.9 ≈ 1.301

2. 9.6 * (-y) = -43.3 Dividing both sides by 9.6 gives: -y = -43.3 / 9.6 ≈ -4.51 Multiplying by -1: y ≈ 4.51

3. -5.3x = 2.34 Dividing both sides by -5.3 gives: x = 2.34 / -5.3 ≈ -0.441

4. 0.3 * (-x) = -2.34 Multiplying both sides by -1: 0.3x = 2.34 Dividing both sides by 0.3 gives: x = 2.34 / 0.3 ≈ 7.8

5. -6.1y = 19.52 Dividing both sides by -6.1 gives: y = 19.52 / -6.1 ≈ -3.197

So, the solution to the system of equations is: x ≈ 1.301 y ≈ 4.51