To find the value of x when x is divided by y, the remainder is 5, and x/y = 5.20, you can use the following approach:

Let's first express the given information mathematically:

x divided by y with a remainder of 5 can be written as: x = 5y + 5

x/y = 5.20 can be written as: x/y = 520/100

Now, we have two equations:

x = 5y + 5 x/y = 520/100

We can solve the second equation for x:

x = (520/100) * y

Now, let's substitute this expression for x into the first equation:

5y + 5 = (520/100) * y

Now, solve for y:

5y + 5 = (5.20) * y

5y + 5 = 5.2y

Now, subtract 5y from both sides:

5 = 0.2y

Now, divide by 0.2:

y = 5 / 0.2

y = 25

Now that we have found the value of y, we can find the value of x using the first equation:

x = 5y + 5 x = 5 * 25 + 5 x = 125 + 5 x = 130

So, the value of x is 130.