Question

(4 1/2 - 0,7)*(1,85 + 3/20) (2,6 + 1 2/5)*(4-2 4/25) зделайти плиз

Answer 1

=(4,5-0,7)*(1,85+0,15)=3,8*2=7,6

=(2,6+1,4)*(4-2,16)=4*1,84=7,36

Answer 2

To solve the expression `(4 + 1/2 - 0.7) * (1.85 + 3/20) + (2.6 + 1 + 2/5) * (4 - 2 + 4/25)`, let's break it down step by step:

Step 1: Simplify the expression within the parentheses

- `(4 + 1/2 - 0.7)` can be simplified to `(4.5 - 0.7)`, which equals `3.8`. - `(1.85 + 3/20)` can be simplified to `(1.85 + 0.15)`, which equals `2`.

Step 2: Simplify the expression within the second set of parentheses

- `(2.6 + 1 + 2/5)` can be simplified to `(2.6 + 1.2)`, which equals `3.8`.

Step 3: Simplify the expression outside the parentheses

- `(3.8) * (2) + (3.8) * (4 - 2 + 4/25)` can be further simplified to `7.6 + 7.6`.

Step 4: Calculate the final result

- `7.6 + 7.6` equals `15.2`.

Therefore, the result of the expression `(4 + 1/2 - 0.7) * (1.85 + 3/20) + (2.6 + 1 + 2/5) * (4 - 2 + 4/25)` is 15.2.