Solve for x. Thank you to anyone that helps

Don't know how to find x given these segment lengths

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.