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the ratio of davids typing speed to lisas is 11:9. Lisa can type 54 words per minute if david and lisa work together to type 4800 words article, how many minutes are needed
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the ratio of davids typing speed to lisas is 11:9. Lisa can type 54 words per minute if david and lisa work together to type 4800 words article, how many minutes are needed

User Lukart
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Answer:

40 minutes are needed.

Explanation:

User Frodopwns
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