**Answer:**

5 hrs

**Step-by-step explanation:**

Use substitution

x + x + 4 = 2

2x = -2, x = -1

Y = -1 + 4, y = 3

Solution: (-1, 3)

Any number that ends with 0 or 5 is divisible by 5. If it ends with any other numbers such as 1 2, 3, 4, ,6, 7, 8, 9 then it is not divisible by 5. If a number is divisible by it means that the number can be divided by 5.

5, 10, 15, 20, 25, 1234567890, 9876543210, etc. are going to be divisible by 5 because they end or a 0.

So, look through your given options. Which answer choice has a 0 or a 5 at the end of the number? That's your answer. :)

Hope that helped. (:

The original number to the nearest tenth is 23.8