Question

4a-(5a-(a-2/9)),есди a=0.37​

Answer 1

4а-(5a-a+2/9)= 4a-5a+a-2/9= -1a+a-2/9= 0-2/9= -2/9

Answer 2

To solve the expression $4a - (5a - (a - \frac{2}{9}))$, when $a = 0.37$, you can substitute the value of $a$ into the expression and then simplify step by step.

First, substitute $a = 0.37$ into the expression:

$$4(0.37) - \left[5(0.37) - \left(0.37 - \frac{2}{9}\right)\right]$$

Now, let's simplify inside the innermost parentheses first:

$$= 4(0.37) - \left[5(0.37) - \left(0.37 - \frac{2}{9}\right)\right]$$

$$= 1.48 - \left[1.85 - \left(0.37 - \frac{2}{9}\right)\right]$$

Next, simplify inside the square brackets:

$$= 1.48 - [1.85 - (0.37 - \frac{2}{9})]$$

$$= 1.48 - [1.85 - (0.37 - \frac{2}{9})]$$

$$= 1.48 - [1.85 - (0.37 - 0.2222)]$$

$$= 1.48 - [1.85 - 0.5922]$$

$$= 1.48 - 1.2578$$

$$= 0.2222$$

Therefore, when $a = 0.37$, the value of the expression $4a - (5a - (a - \frac{2}{9}))$ is $0.2222$.