Question

20*(-0.3)-15*0.7-10*(-0.3)+6*0.7

Answer 1

20*(-0.3)-15*0.7-10*(-0.3)+6*0.7= -6 - 10,5 + 3 + 4,2= -9
Ответ: -9

Answer 2

Let's solve the expression step by step:

20*(-0.3) = -6 -150.7 = -10.5 -10(-0.3) = 3 6*0.7 = 4.2

Now, combine all the results:

-6 - 10.5 + 3 + 4.2 = -9.3

So, the final result is -9.3.