Question

21−0.2×(92.28−91)+73.26÷(10.45−0.45)​

Answer 1

Ответ:28.07

Пошаговое объяснение:

Решаем в первых скобках:

1) 92.28–91=1.28

Решаем во вторых скобках:

2) 10.45–0.45=10

Решаем умножение и деление:

3) 0.2*1.28=0.256

4) 73.26:10=7.326

Решаем сложение и вычитание:

5) 21–0.256=20.744

6) 20.744+7.326=28.07

Answer 2

To evaluate the expression 21−0.2×(92.28−91)+73.26÷(10.45−0.45), let's break it down step by step:

First, we'll calculate the expression within the parentheses: 92.28 − 91 = 1

Next, we'll calculate the multiplication: 0.2 × 1 = 0.2

Then, we'll calculate the expression within the second set of parentheses: 10.45 − 0.45 = 10

After that, we'll calculate the division: 73.26 ÷ 10 = 7.326

Finally, we'll substitute the results back into the original expression and perform the remaining operations: 21 − 0.2 × 0.2 + 7.326

Multiplication takes precedence over addition and subtraction, so we'll perform it first: 0.2 × 0.2 = 0.04

Now we have: 21 − 0.04 + 7.326

Next, we'll perform the subtraction and addition in order: 21 − 0.04 = 20.96

Finally, we have: 20.96 + 7.326 = 28.286

Therefore, the value of the expression 21−0.2×(92.28−91)+73.26÷(10.45−0.45) is approximately 28.286.