Question

1) −5,6:4+7,8:(−6)= 2) −2,8:14+(−4,2):(5,3−7,4)=

Answer 1

Ответ:

1) -2,7

2)1,8



Надеюсь все правильно)))

Answer 2

Ответ:

1) -2,7

2) 1,71

Пошаговое объяснение:

−5,6:4+7,8:(−6)= -1,4 - 1,3 = -2,7

−2,8:14+(−4,2):(5,3−7,4) = -0,2 + (-4,2) : (-2,2) = -0,2 + 1,91 = 1,71

Answer 3

Let's break down each expression step by step:

1. (-5.6 : 4) + (7.8 : (-6))

To calculate division, we use the notation "a : b," which means a divided by b.

(-5.6 : 4) equals -1.4 since -5.6 divided by 4 is -1.4.

(7.8 : (-6)) equals -1.3 since 7.8 divided by -6 is -1.3.

Now we can substitute these values back into the original expression:

-1.4 + (-1.3) equals -2.7.

Therefore, the value of the expression is -2.7.

2. (-2.8 : 14) + (-4.2 : (5.3 - 7.4))

Again, let's calculate the divisions first:

(-2.8 : 14) equals -0.2 since -2.8 divided by 14 is -0.2.

(5.3 - 7.4) equals -2.1 since 5.3 minus 7.4 is -2.1.

(-4.2 : -2.1) equals 2 since -4.2 divided by -2.1 is 2.

Now we can substitute these values back into the original expression:

-0.2 + 2 equals 1.8.

Therefore, the value of the expression is 1.8.

To summarize:

1. (-5.6 : 4) + (7.8 : (-6)) = -2.7
2. (-2.8 : 14) + (-4.2 : (5.3 - 7.4)) = 1.8