Question

Страница 78 номер пять Найди значение выражений а) 700.700 - 6.054×(47.923-47 884)-65 548 =??? Б) (14084:28-23)-27-120:60=??? В) (10²+11²+12²): 73+895=??? Г) 2555:(13²+14²)+35=??? Помогите пожалуйста ◖⚆ᴥ⚆◗ ​

Answer 1

Ответ:

а)3939

б)4883

в)547

г)2886

Answer 2

Calculation of Expressions

a) To find the value of the expression 700.700 - 6.054 × (47.923 - 47 + 884) - 65,548, we can follow the order of operations (PEMDAS/BODMAS) and simplify the expression step by step:

1. Simplify the expression inside the parentheses: 47.923 - 47 + 884 = 884.923. 2. Multiply the result by 6.054: 6.054 × 884.923 = 5,352.051942. 3. Subtract the previous result from 700.700: 700.700 - 5,352.051942 = -4,651.351942. 4. Finally, subtract 65,548 from the previous result: -4,651.351942 - 65,548 = -70,199.351942.

Therefore, the value of the expression 700.700 - 6.054 × (47.923 - 47 + 884) - 65,548 is -70,199.351942.

b) To find the value of the expression (14,084:28 - 23) - 27 - 120:60, we can again follow the order of operations:

1. Divide 14,084 by 28: 14,084 ÷ 28 = 502. 2. Subtract 23 from the previous result: 502 - 23 = 479. 3. Subtract 27 from the previous result: 479 - 27 = 452. 4. Divide 120 by 60: 120 ÷ 60 = 2. 5. Subtract the previous result from 452: 452 - 2 = 450.

Therefore, the value of the expression (14,084:28 - 23) - 27 - 120:60 is 450.

c) To find the value of the expression (10² + 11² + 12²) ÷ 73,895, we can perform the calculations step by step:

1. Calculate the squares of 10, 11, and 12: 10² = 100, 11² = 121, 12² = 144. 2. Add the squares together: 100 + 121 + 144 = 365. 3. Divide the sum by 73,895: 365 ÷ 73,895 = 0.004943.

Therefore, the value of the expression (10² + 11² + 12²) ÷ 73,895 is approximately 0.004943.

d) To find the value of the expression 2555 ÷ (13² + 14²) + 35, we can follow the order of operations:

1. Calculate the squares of 13 and 14: 13² = 169, 14² = 196. 2. Add the squares together: 169 + 196 = 365. 3. Divide 2555 by the sum: 2555 ÷ 365 = 7. 4. Add 35 to the previous result: 7 + 35 = 42.

Therefore, the value of the expression 2555 ÷ (13² + 14²) + 35 is 42.

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