Question

1)х:(4)=-32. 2)-7,2:(-2,4). 3)3/7:(-5\14). 4)-11:(-5 1\2).

Answer 1

Ответ:

1) х=-128

2) 3

3) -6/5

4) 2

Answer 2

To solve these arithmetic expressions, let's go through each one:

1. х:(4) = -32

To find the value of x, we need to multiply both sides of the equation by 4: х = -32 * 4 х = -128

Therefore, the value of x is -128.

2. -7.2:(-2.4)

To divide a number by a negative number, we need to change the sign of the division. So the expression becomes: -7.2 / (-2.4)

Dividing -7.2 by -2.4 gives us: -7.2 / (-2.4) = 3

Therefore, the result is 3.

3. (3/7) / (-5/14)

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction: (3/7) * (-14/5)

Multiplying the numerators and denominators, we get: (3 * -14) / (7 * 5) = -42 / 35

Simplifying the fraction by dividing both the numerator and denominator by their greatest common divisor, we have: -42 / 35 = -6 / 5

Therefore, the result is -6/5.

4. -11 / (-5 1/2)

To divide a number by a mixed number, we first need to convert the mixed number to an improper fraction: -11 / (-5 1/2) = -11 / (-11/2)

Dividing by a fraction is the same as multiplying by its reciprocal: -11 * (2/-11) = -2

Therefore, the result is -2.