Question

A) 3,8×(2,275: 0,65 + 4,65) + 76,7 · 0,9 Б) (5,65-2,3 × 1,4) : (9,3 0,28 -0,804) B) 21,28 : 7,6 +2,4 × (16,77 ÷ 0,43 - 33,5) Г) (18,33: 4,7 + 12,1) × (88,8: 2,4 - 35,5)

Answer 1

3,8 3,5+4,65) +69,03

Вычислить

3,8×8,15+69,03

Вычислить

30,97 +69,03

Вычислить

Решения 100

(5,65-2,3×1,49,3×0,28-0,804)

Вычислить

(5,65-3,22)+(2,604 -0,804)

Вычислить

2,43 1,8

Выполнить деление

Решение

1,35

Альтернативная форма

27, 1 7

20 20

21,287,6 +2,4 16,77 0,43-33,5

Выполнить деление

2,8 +2,4 39-33,5

Вычислить

2,8 +2,4×5,5

Вычислить

2,8 +13,2

Вычислить

Решение

16

(18,33 ÷ 4,7 +12,1) × (88,8-2,4-35,5) =

Выполнить деление

(3,9+12,1)x(37-35,5)

Вычислить

16х1,5

Вычислить

Решение

24

Answer 2

Ответ:

...

Пошаговое объяснение:

на фото все розписано

Answer 3

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

A) 3.8 × (2.275 ÷ 0.65 + 4.65) + 76.7 × 0.9

First, calculate the expression inside the parentheses:

2.275 ÷ 0.65 + 4.65 = 3.5 + 4.65 = 8.15

Now, substitute this value back into the expression:

3.8 × 8.15 + 76.7 × 0.9

Now, calculate the multiplication and addition:

3.8 × 8.15 = 31.07 76.7 × 0.9 = 69.03

Finally, add these two results:

31.07 + 69.03 = 100.10

So, A) equals 100.10.

B) (5.65 - 2.3 × 1.4) ÷ (9.3 - 0.28 - 0.804)

First, calculate the expression inside the first set of parentheses:

5.65 - 2.3 × 1.4 = 5.65 - 3.22 = 2.43

Now, calculate the expression inside the second set of parentheses:

9.3 - 0.28 - 0.804 = 8.218

Now, divide the result of the first set of parentheses by the result of the second set of parentheses:

2.43 ÷ 8.218 ≈ 0.2959 (rounded to four decimal places)

So, B) is approximately 0.2959.

C) 21.28 ÷ 7.6 + 2.4 × (16.77 ÷ 0.43 - 33.5)

First, calculate the expression inside the second set of parentheses:

16.77 ÷ 0.43 - 33.5 ≈ 38.9535 - 33.5 ≈ 5.4535 (rounded to four decimal places)

Now, calculate the multiplication:

2.4 × 5.4535 ≈ 13.0484 (rounded to four decimal places)

Finally, calculate the division and addition:

21.28 ÷ 7.6 + 13.0484 ≈ 2.8 + 13.0484 ≈ 15.8484 (rounded to four decimal places)

So, C) is approximately 15.8484.

D) (18.33 ÷ 4.7 + 12.1) × (88.8 ÷ 2.4 - 35.5)

First, calculate the expression inside the first set of parentheses:

18.33 ÷ 4.7 + 12.1 ≈ 3.8991 + 12.1 ≈ 15.9991 (rounded to four decimal places)

Now, calculate the expression inside the second set of parentheses:

88.8 ÷ 2.4 - 35.5 ≈ 37 - 35.5 ≈ 1.5

Now, calculate the multiplication:

15.9991 × 1.5 ≈ 23.99865 (rounded to five decimal places)

So, D) is approximately 23.99865.

Answer 4

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

A) 3.8 × (2.275 ÷ 0.65 + 4.65) + 76.7 × 0.9

First, let's calculate the expression inside the parentheses: 2.275 ÷ 0.65 + 4.65 = 3.5 + 4.65 = 8.15

Now, we can substitute this back into the original expression: 3.8 × 8.15 + 76.7 × 0.9

Now, perform the multiplications and additions: 30.97 + 69.03

Finally, add these two numbers together: 30.97 + 69.03 = 100

So, the result of expression A) is 100.

B) (5.65 - 2.3 × 1.4) ÷ (9.3 - 0.28 - 0.804)

First, calculate the expression inside the parentheses: 5.65 - 2.3 × 1.4 = 5.65 - 3.22 = 2.43 9.3 - 0.28 - 0.804 = 9.3 - 1.084 = 8.216

Now, perform the division: 2.43 ÷ 8.216 ≈ 0.2958 (rounded to four decimal places)

So, the result of expression B) is approximately 0.2958.

C) 21.28 ÷ 7.6 + 2.4 × (16.77 ÷ 0.43 - 33.5)

First, calculate the expression inside the parentheses: 16.77 ÷ 0.43 - 33.5 ≈ 38.988 - 33.5 ≈ 5.488

Now, perform the multiplication: 2.4 × 5.488 ≈ 13.1712 (rounded to four decimal places)

Now, perform the division and addition: 21.28 ÷ 7.6 + 13.1712 ≈ 2.8 + 13.1712 ≈ 15.9712 (rounded to four decimal places)

So, the result of expression C) is approximately 15.9712.

D) (18.33 ÷ 4.7 + 12.1) × (88.8 ÷ 2.4 - 35.5)

First, calculate the expression inside the first set of parentheses: 18.33 ÷ 4.7 + 12.1 ≈ 3.8979 + 12.1 ≈ 15.9979 (rounded to four decimal places)

Now, calculate the expression inside the second set of parentheses: 88.8 ÷ 2.4 - 35.5 ≈ 37 - 35.5 ≈ 1.5

Now, perform the multiplication: 15.9979 × 1.5 ≈ 23.9969 (rounded to four decimal places)

So, the result of expression D) is approximately 23.9969.