Question

3(2a-3b)-(0,5+b)при:a=0,2, b=0,11

Answer 1

3(2a-3b)-(0,5+b)= 6a-9b-0,5-b= 6a-10b-0,5

Если а=0,2, b=0,11, то

6a-10b-0,5= 6×0,2-10×0,11-0,5= 1,2-1,1-0,5= 0,1-0,5= -0,4.

Ответ: -0,4.

Answer 2

To evaluate the expression 3(2a-3b)-(0,5+b) for the given values of a and b, we substitute a=0.2 and b=0.11 into the expression:

3(2a-3b)-(0.5+b) = 3(2(0.2)-3(0.11))-(0.5+0.11) = 3(0.4-0.33)-0.61 = 3(0.07)-0.61 = 0.21-0.61 = -0.4

Therefore, when a=0.2 and b=0.11, the value of the expression 3(2a-3b)-(0.5+b) is -0.4.