if 1 inch equals 10 feet, than how many inches is 13 feet?

1.3

To solve this problem, we can set up a proportion using the given information that 1 inch equals 10 feet.

Let's assign a variable to represent the unknown number of inches. Let's call it "x".

The proportion can be set up as follows:

1 inch / 10 feet = x inches / 13 feet

To find the value of x, we can cross-multiply and solve for x:

1 * 13 = 10 * x

13 = 10x

Divide both sides of the equation by 10:

13 / 10 = x

x = 1.3

Therefore, 13 feet is equivalent to 1.3 inches.