Question 1012174
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W=number of white; R=number of red=7W+25
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R+W=225
(7W+25)+W=225
8W=200
W=25
ANSWER: There are 25 white poinsettias.
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CHECK:
R=7W+25
R=7(25)+25
R=175+25
R=200
There are 200 red poinsettias.
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R+W=225
200+25=225
225=225