Question

9 <a <15 4 <b <9 оценить a+b​

Answer 1

9<а<15

+

4<b<9

-----------------

13<a+b<24

Answer 2

To evaluate the expression "a + b" with the given inequalities:

1. Start by finding the lower and upper bounds of "a" and "b" based on the given inequalities:

   For "a": 9 < a < 15

   For "b": 4 < b < 9

2. Determine the possible range of values for "a" and "b" by considering the lower and upper bounds:

   For "a": The smallest possible value of "a" is 9, and the largest possible value is 15.

   For "b": The smallest possible value of "b" is 4, and the largest possible value is 9.

3. Now, let's evaluate "a + b" using the extreme values of "a" and "b":

   The smallest value of "a" (9) added to the smallest value of "b" (4): 9 + 4 = 13

   The largest value of "a" (15) added to the largest value of "b" (9): 15 + 9 = 24

So, the range of possible values for "a + b" is from 13 to 24, inclusive.