The sum of 4 and b is at least 23
Then b is at least 19.
23 - 4 = 19
The sum of 4 and b is at least 23
---> b+4 ≥ 23
b ≥ 19
To find the value of b that makes the sum of 4 and b at least 23, you need to set up an equation and solve for b.
Let's denote the value of b as x. The sum of 4 and b can be expressed as 4 + b.
So the equation that represents the given condition is:
4 + b ≥ 23
To solve this inequality for x, we can isolate the variable b.
Subtract 4 from both sides of the equation to get:
b ≥ 23 - 4
b ≥ 19
Therefore, the value of b should be greater than or equal to 19 to make the sum of 4 and b at least 23.