Question

1)1,2×(-0,75)= 2)(-12/19)×38/45= 3)-15/22:(-5/11)= ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!

Answer 1

Ответ:

Пошаговое объяснение:

1)1,2×(-0,75)=-0,9

2)(-12/19)×38/45=-8/15

3)-15/22:(-5/11)=-15/22*(-11/5)=3/2=1 1/2

Answer 2

1) 1,2×(-0,75) =

To calculate the product of 1.2 and -0.75, you simply multiply the two numbers together.

1.2 × (-0.75) = -0.9

Therefore, the result is -0.9.

2) (-12/19)×38/45 =

To solve this expression, you need to perform the multiplication and division operations in the correct order.

First, multiply -12/19 by 38:

(-12/19) × 38 = -24/19

Then, divide the result by 45:

(-24/19) ÷ 45 = -8/57

Therefore, the result is -8/57.

3) -15/22:(-5/11) =

To solve this expression, you need to divide -15/22 by -5/11.

Dividing fractions involves multiplying the first fraction by the reciprocal of the second fraction.

-15/22 ÷ (-5/11) = -15/22 × (-11/5)

Now, multiply the numerators and denominators:

(-15 × -11) / (22 × 5) = 165/110

Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 5:

165/110 ÷ 5/5 = 33/22

Therefore, the result is 33/22.

I hope this helps! Let me know if you have any further questions.