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8 votes
It takes Robert 5 minutes to complete 3 math problems. Use the equation y= x/3 times 5 to find how long it will take Robert to complete 12 math problems. x = math problems; y = minutes

User Hung Cao
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1 Answer

11 votes
11 votes

Answer:

20 minutes

Explanation:

y=(12/3)*5=20

User Shabbir
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