Gabriel is making a mixture of compost and soil to use for a special plant. He wants his final mix to be 2 parts compost and 8 parts soil. He wants to end up with 12 kilograms to mix. How many kilograms of compost should Gabriel use?
I thought about it this way; the ratio between compost and soil is 2/8. 2/8 is also equal to 1/4, and 1/4 of 12 is 3. So you'd want 3 kilograms of compost a d 9kg of soil. (:
