Question

(-15,64 : 4 3/5 + 7,1) х 2 2/5 =

Answer 1

(-15,64 : 43/5+7,1) x 22/5 = -13 1/5

Answer 2

First, let's simplify the expression inside the parentheses:

4 3/5 + 7.1 = 4 + 3/5 + 7.1 = 11 + 3/5 = 11.6

Now we can substitute this value into the expression and simplify:

(-15,64 : 11.6) x 2 2/5

= (-1.34206896552) x 2 2/5

To multiply a number by a mixed number, we can convert the mixed number to an improper fraction and then multiply:

2 2/5 = 12/5

(-1.34206896552) x (12/5)

= -3.221444827586207

Rounding to two decimal places, the final answer is approximately -3.22.