Question

1). (13 − 44) · (27 − 47) 2). (63 − 75) · (110 − 115) 3). (54 − 75) : 7 4). 49 : (84 – 91) 5). – 54 : (66 – 84)

Answer 1

Ответ:

1. 620

2. 60

3. -3

4. -7

5. 3

Answer 2

Ответ:

1) -31*(-20)=620

2) -12×(-5)=60

3)-21:7= -3

4) 49:(-7)= -7

5) -54:(-18)= 3

Answer 3

Let's solve each of these mathematical expressions step by step:

1. (13 - 44) * (27 - 47) = (-31) * (-20) = 620

2. (63 - 75) * (110 - 115) = (-12) * (-5) = 60

3. (54 - 75) / 7 = (-21) / 7 = -3

4. 49 / (84 - 91) = 49 / (-7) = -7

5. -54 / (66 - 84) = -54 / (-18) = 3

So, the results for each expression are as follows:

1. (13 - 44) * (27 - 47) = 620
2. (63 - 75) * (110 - 115) = 60
3. (54 - 75) / 7 = -3
4. 49 / (84 - 91) = -7
5. -54 / (66 - 84) = 3