Luis is making chocolate chip cookies the recipe calls for 1/8 cup of almonds for every 3/4 cup of chocolate chips if Louis uses 3 cups of chocolate chips, how many cups of almonds will he need round to the nearest tenth

If the recipe calls for 1/8 cup of almonds for every 3/4 cup of chocolate chips, then the ratio is 1/8 / 3/4 = 1/8 * 4/3 = 1/6 cup of almonds per cup of chocolate chips.

If Louis uses 3 cups of chocolate chips, he will need 3 * 1/6 = <<3*1/6=0.5>>0.5 cups of almonds. Answer: \boxed{0.5}.