Question

20⋅b+10 меньше значение выражения 19⋅b-4? В ответе укажи номер правильного варианта. 1) b>10; 2) b<10; 3) b<−14; 4) b>−14.

Answer 1

Ответ:

20b+10<19b-4

b<-14

...

Answer 2

To determine the correct answer, let's compare the two expressions:

1. 20⋅b + 10
2. 19⋅b - 4

We want to find out when the first expression is less than the second expression:

20⋅b + 10 < 19⋅b - 4

To solve this inequality, we need to isolate the variable "b" on one side of the inequality:

Subtract 19⋅b from both sides:

20⋅b - 19⋅b + 10 < -4

Combine like terms:

b + 10 < -4

Now, isolate "b" by subtracting 10 from both sides:

b < -4 - 10

b < -14

So, the correct answer is 3) b < -14.