What is true about their sum (x+y) is that, the sum is greater than 12 and less than 48.
Solving word problems.
In the given information, Hal starts with a fraction that is greater than 0 and less than 14. Mathematically, this expression can be represented as:
0 < x < 14.
He adds a fraction that is greater than 12 and less than 34. To represent this, we have:
12 < y < 34.
To understand what is true about their sum, we need to add the two inequalities together: i.e.
0 + 12 < x + y< 14 + 34
12 < x + y < 48
Therefore, what is true about their sum (x+y) is that, the sum is greater than 12 and less than 48.