Ms. Salazar's rice mixture consists of seven parts of white rice to three parts ofwild rice. If she makes 30 cups of the mixture, how many cups of white rice will she use? How many cups of wild rice will she use?
seven out of (7+3 =10) = 7/10 white rice
7/10 * 30 = 21 cups white 30 - 21 = 9 cups wild