Question

Помогите решить прошу вас А) -11,9 -(-6,7). -5,8-(+3 ,6) Б) (-17,6) - (- 3,9) - (-8,4) + (-9,6) - (+4,2) В) (-60/7) - (-33/5) + 47/5 + (-47/7) Г) | -6 + 3 * |-4| | +3 * |-15 -4| Д) - | 2/3 * 2/3 - 5/18 + 7/9| - |3/54 - 8/27|

Answer 1

А) -11,9+6,7-5,8-3,6= -14,6
б) -17,6+3,9+8,4-9,6-4,2= -19,1
в) -60/7-47/7+33/5+47/5= -107/7+80/5=16-107/7=112/7-107/7=5/7
г) 
д) -|4/9-5/18+7/9|-|3/54-16/54|=-|8/18-5/18+14/18|-|-13/54|=-17/18-13/54= -51/54-13/54= -64/54= -32/27= -1 5/27

Answer 2

A) -11.9 - (-6.7)

To solve this expression, we need to perform the subtraction inside the parentheses first.

The expression becomes:

-11.9 - (-6.7) = -11.9 + 6.7

Now, we can simply add the two numbers:

-11.9 + 6.7 = -5.2

So, the answer to A) is -5.2.

B) (-17.6) - (-3.9) - (-8.4) - (-9.6) - (4.2)

Similar to the previous example, we need to subtract the numbers inside the parentheses first.

The expression becomes:

(-17.6) - (-3.9) - (-8.4) - (-9.6) - (4.2) = -17.6 + 3.9 - 8.4 + 9.6 - 4.2

Now, we can perform the addition and subtraction:

-17.6 + 3.9 - 8.4 + 9.6 - 4.2 = -16.7

So, the answer to B) is -16.7.

C) (-60/7) - (-33/5) + 47/5 + (-47/7)

To solve this expression, we need to perform the subtraction and addition of fractions.

The expression becomes:

(-60/7) - (-33/5) + 47/5 + (-47/7) = -60/7 + 33/5 + 47/5 - 47/7

To add or subtract fractions, we need to have a common denominator. In this case, the common denominator is 35.

Converting the fractions to have a common denominator:

(-60/7) - (-33/5) + 47/5 + (-47/7) = (-300/35) + (231/35) + (329/35) - (235/35)

Now, we can add and subtract the fractions:

(-300/35) + (231/35) + (329/35) - (235/35) = 25/35

Simplifying the fraction:

25/35 = 5/7

So, the answer to C) is 5/7.

D) |-6 + 3| * |-4| + |3 * |-15 - 4| - |2/3 * 2/3 + 5/18 - 7/9| - |3/54 + 8/27|

To solve this expression, we need to evaluate each absolute value separately and then perform the operations.

|-6 + 3| = | -3 | = 3

|-4| = 4

|3 * |-15 - 4| = |3 * -19| = |-57| = 57

|2/3 * 2/3 + 5/18 - 7/9| = |4/9 + 5/18 - 14/18| = |8/18 + 5/18 - 14/18| = |-1/18| = 1/18

|3/54 + 8/27| = |1/18 + 16/18| = |17/18| = 17/18

Now, we can substitute the absolute values with their values and perform the operations:

3 * 4 + 57 - 1/18 - 17/18 = 12 + 57 - 1/18 - 17/18

To combine the fractions, we need to have a common denominator. In this case, the common denominator is 18.

Converting the fractions to have a common denominator:

12 + 57 - (1/18) - (17/18) = 12 + 57 - (1/18) - (17/18) = 69 - 18/18 = 69 - 1 = 68

So, the answer to D) is 68.

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