Question

6а+7b/3a-4b если а=12 в=5,6

Answer 1

Ответ:

6*12+7*5,6/3*12-4*5,6

72+39,2/36-22,4

111,2/13,6

8,176470588235

Answer 2

To evaluate the expression 6а + 7b / (3a - 4b) when а = 12 and b = 5.6, we substitute the given values into the expression and perform the calculations.

So, let's substitute а = 12 and b = 5.6 into the expression:

6(12) + 7(5.6) / (3(12) - 4(5.6))

Now, let's simplify the expression:

72 + 39.2 / (36 - 22.4)

Next, we perform the division and subtraction:

72 + 39.2 / 13.6

Now, we divide 39.2 by 13.6:

72 + 2.88

Finally, we add 72 and 2.88:

74.88

Therefore, when а = 12 and b = 5.6, the value of the expression 6а + 7b / (3a - 4b) is approximately 74.88.