Quality Grocer makes its own bulk "trail mix" by mixing raisins and peanuts. The wholesale cost of raisins is $3.75 per kg and the cost of peanuts is $2.89 per kg. To the nearest 0.1 kg, what amounts of peanuts and raisins should be mixed to produce 50 kg of trail mix with an effective wholesale cost of $3.20 per kg?

Wholesale Cost

The cost of goods purchased in large quantities directly from manufacturers or distributors before any markup for retail sale.

Trail Mix

A snack blend that typically consists of a mixture of nuts, seeds, dried fruits, and sometimes chocolate or candy.

Peanuts

Informally, a very small or insignificant amount of money; literally, a legume crop grown mainly for its edible seeds.