<PRE><B>Question 271663</B>
Every hour, Jennifer can sew 24dresses while her mother can sew only 20 dresses. how long will it take them to sew 110 dresses together ?
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Let x be the time to sew 110 dresses
Jennifer DATA:
rate = 24 dph ; time = x hrs ; #of dresses = 24x
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Mother DATA:
rate = 20 dph; time = x hrs ; # of dresses = 20x
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Equation:
# of d + # of d = 110
24x + 20x = 110
44x = 110
x = 2.5 hrs
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Cheers,
Stan H.
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A 1.5 hour b 1.8 hour c 2 hour d 2.2 hour e 2.5 hour 
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