Question
Valen had some $10 notes and $20 notes. The ratio of his $10 notes to $20 notes was 9 : 1. If Valen had a total of $330, how many pieces of notes did he have altogether?
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Valen had some $10 notes and $20 notes. The ratio of his $10 notes to $20 notes was 9 : 1. If Valen had a total of $330, how many pieces of notes did he have altogether?