問題詳情

58. Jules can make m muffins in s minutes. Alice can make n muffins in t minutes.Which of the following gives the number of muffins that Jules and Alice can maketogether in 30 minutes?
(A) 5ecb5f1a2e441.jpg
(B) 5ecb5f33ca4e8.jpg
(C)30 ( ) mt ns +
(D) 5ecb5f4d318ac.jpg



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