At Asha’s Java, a new blend of coffee is featured each week. This week, Asha is creating a low-caffeine espresso blend from Kenyan and Colombian beans. She wants to make 250kg of this blend and sell it for $17/kg. The Kenyan beans sell for $14/kg and the Colombian beans sell for $19/kg. How many kilograms of each type of bean must Asha use to make 250kg of her new blend of the week?