Question

21,45:0,3+16,4*1,9-189,72*0, 9

Answer 1

Пошаговое объяснение:

21,45:0,3+16,4×1,9-189,72×0,9

1) 21,45:0,3=71,5

2) 16,4×1,9=31,16

3) 189,72×0,9=170,748

4) 71,5+31,16=102,66

5) 102,66-170,748= - 68,088

Answer 2

To calculate the expression 21.45 + 0.3 + 16.4 * 1.9 - 189.72 * 0.9, follow the order of operations (PEMDAS/BODMAS):

1. First, perform the multiplication: 16.4 * 1.9 = 31.16

2. Next, perform the remaining multiplication: 189.72 * 0.9 = 170.748

3. Now, you have the expression: 21.45 + 0.3 + 31.16 - 170.748.

4. Finally, perform the addition and subtraction in order: 21.45 + 0.3 + 31.16 - 170.748 = -117.848

So, the result of the expression is approximately -117.848.