Question

1. 1) (127 + 89) ·305 - 42 993, 2) 59057:73 + 239.49;3) 139725:405 - 151892:508;4) 7410 + 51642 : (517 + 389);5) 81. (2423 - 1879):36;6) (10034 - 17514:21) ·25.​

Answer 1

Ответ:

Пошаговое объяснение:

1) (127 + 89) ·305 - 42 993 = 22887

2) 59057:73 + 239.49 = 809+ 239,49 = 1048,49

3) 139725:405 - 151892:508 = 345 - 299= 46

4) 7410 + 51642 : (517 + 389) = 7410+ 57=7467

5) 81. (2423 - 1879):36 = 81*544 : 36 = 1224

6) (10034 - 17514:21) ·25 =( 10034-834)* 25=9200*25 =230000

Answer 2

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

1. (127 + 89) × 305 - 42 993: First, calculate the sum inside the parentheses: 127 + 89 = 216 Then, multiply the result by 305: 216 × 305 = 65,880 Finally, subtract 42,993 from the previous result: 65,880 - 42,993 = 22,887

2. 59057 : 73 + 239.49: Divide 59057 by 73: 59057 ÷ 73 ≈ 809.493 Add 239.49 to the previous result: 809.493 + 239.49 ≈ 1048.983

3. 139725 : 405 - 151892 : 508: Divide 139725 by 405: 139725 ÷ 405 ≈ 345 Divide 151892 by 508: 151892 ÷ 508 ≈ 298 Subtract the second result from the first: 345 - 298 = 47

4. 7410 + 51642 : (517 + 389): Calculate the sum inside the parentheses: 517 + 389 = 906 Divide 51642 by 906: 51642 ÷ 906 ≈ 56.996 Add 7410 to the previous result: 56.996 + 7410 ≈ 7466.996

5. 81 . (2423 - 1879) : 36: Calculate the difference inside the parentheses: 2423 - 1879 = 544 Multiply 81 by the previous result: 81 × 544 = 44,064 Divide the previous result by 36: 44,064 ÷ 36 = 1,224

6. (10034 - 17514 : 21) × 25: Divide 17514 by 21: 17514 ÷ 21 ≈ 834.857 Subtract the previous result from 10034: 10034 - 834.857 ≈ 9219.143 Multiply the result by 25: 9219.143 × 25 ≈ 230,478.575

So, the solutions to the given expressions are:

1. 22,887
2. 1048.983
3. 47
4. 7466.996
5. 1,224
6. 230,478.575