Question

1.5*(3.8в-2.4а)-1.6*(2.5а-в) если а=2,в=-3

Answer 1

Ответ:

-37.1

Пошаговое объяснение:

1.5*(3.8в-2.4а)-1.6*(2.5а-в) = 1.5*(3.8*(-3)-2.4*2)-1.6*(2.5*2-(-3)) = 1.5*(-11.4-4.8)-1.6(5+3)=1.5*(-16.2)-1.6*8=-24.3-12.8=-37.1

Answer 2

7,3*(-3)-7,6*2=-21,9-15,2=-37,1

Answer 3

To evaluate the expression 1.5*(3.8в-2.4а)-1.6*(2.5а-в) with the values а=2 and в=-3, we can substitute these values into the expression and perform the calculations:

1.5*(3.8*(-3) - 2.4*(2)) - 1.6*(2.5*(2) - (-3))

First, let's simplify the inner expressions:

3.8*(-3) = -11.4 2.4*(2) = 4.8 2.5*(2) = 5 -3 - (-3) = 0

Substituting the simplified values:

1.5*(-11.4 - 4.8) - 1.6*(5 - 0)

Now we can continue simplifying:

1.5*(-16.2) - 1.6*(5)

-24.3 - 8

Finally, performing the subtraction:

-32.3

Therefore, when а=2 and в=-3, the expression 1.5*(3.8в-2.4а)-1.6*(2.5а-в) evaluates to -32.3.