Wesley is making a patio from stones of two sizes, 5 inches wide and 10 inches wide. He wants to begin and end his pattern with a 10-inch stone so there will be one more of the 10-inch stones than of the 5-inch stones . His patio will be 130 inches wide

Answer 1

I assume you want to know how many stones it will take to pave 130 inches.
10(x+1) + 5x = 130
15x + 10 = 130
x = 8
so, 8 5" and 9 10" = 40+90 = 130"