Verda138 Verda138
  • 24-07-2014
  • Mathematics
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Ted weighs twice as much as Julie. Mike weighs three times as much as Julie. Together, Ted, Mike, and Julie weigh 210 lbs. What is the weight of each person?

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luana
luana luana
  • 24-07-2014
x-weigh of Ted
y-weigh of Julie
z-weigh of Mike

x=2y
z=3y
x+y+z=210lbs

2y+y+3y=210
6y=210 /:6
y=35 lbs
x=2y=2*35=70 lbs
z=3y=3*35=105 lbs

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