In one full day, a kudzu vine can grow 15 inches in length. How many inches per hour is this?

0.625

Step-by-step explanation:

15 divided by 24 which equals 0.625

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!