Question

1) 0,5×45 ; 2) 0,4×40 ; 3) 0,2×9 ; 4) 0,8×5 ; 5) 0,7×3 ; 6) 0,3×25 ; 7) (1, 7+2) ×4 ; 8) (5, 3+1, 4) ×3 ; 9) (6, 15+3, 5) ×5 ; Пожалуйста помогите сделать математику

Answer 1

Ответ:

1)22,5

2)16

3)1,8

4)4

5)2,1

6)7,5

7)14,8

8)22,26

9)48,25

Answer 2

#### Calculation: To solve the given mathematical expression, let's calculate each term and then sum them up: 1) 0.5 × 45 = 22.5 2) 0.4 × 40 = 16 3) 0.2 × 9 = 1.8 4) 0.8 × 5 = 4 5) 0.7 × 3 = 2.1 6) 0.3 × 25 = 7.5 7) (1 + 7 + 2) × 4 = 40 8) (5 + 3 + 1 + 4) × 3 = 39 9) (6 + 15 + 3 + 5) × 5 = 290 Now, let's sum up all the calculated values: 22.5 + 16 + 1.8 + 4 + 2.1 + 7.5 + 40 + 39 + 290 = 423.9 Therefore, the result of the given expression is **423.9**. Please let me know if there is anything else I can help you with!