tay3278 tay3278

22-10-2018
Mathematics

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Jeffery typed 110 words in 2 3/4 minutes. At this rate, how many words can he type in 4 1/4 minutes

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wegnerkolmp2741o wegnerkolmp2741o

22-10-2018

change the mixed numbers to improper factions

2 3/4 = (4*2+3)/4 = 11/4

4 1/4 = (4*4+1) /4 = 17/4

110 divided by 11/4

copy dot flip

110 * 4/11 = 40 words per minute

40 word per minute * 17/4 minutes

170 words

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