Question

-3 8/9*0.9-2.64:(-0.12)

Answer 1

Ответ:

18.5

Объяснение:

-3 8/9 * 0.9 = -3.5

2.64 : (-0.12) = -22

-3.5 : (-22) = 18.5

Answer 2

To calculate the expression, follow the order of operations (PEMDAS/BODMAS):

1. Start with the division inside the parentheses: -2.64 ÷ (-0.12) = 22

2. Now, multiply the result by 0.9: 22 * 0.9 = 19.8

3. Finally, subtract 3 8/9 from the result: 19.8 - 3 8/9

To subtract the mixed number, you'll need to convert 3 8/9 to an improper fraction:

3 8/9 = (3 * 9 + 8) / 9 = (27 + 8) / 9 = 35/9

Now, subtract 35/9 from 19.8:

19.8 - 35/9

To subtract fractions, find a common denominator (which in this case is 9):

(19.8 * 9/9) - (35/9)

Now, subtract:

(178.2/9) - (35/9) = (178.2 - 35) / 9 = 143.2/9

So, the result is 143.2/9 or approximately 15.89 when expressed as a decimal.