Final answer:
To find the number, use the given equation 8x - 15 = 65 and solve for x.
Step-by-step explanation:
To find the number, we can set up an equation based on the given information. Let's call the number x.
Eight times the number can be written as 8x, and when we subtract fifteen from it, we get 8x - 15.
We know that this expression is equal to sixty-five, so we can write the equation 8x - 15 = 65.
To solve for x, we need to isolate it on one side of the equation. Adding 15 to both sides, we get 8x = 80. Finally, dividing both sides by 8, we find that the number is x = 10.