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6 stools and 4chairs cost$58 but 5 stools and 2 chairs cost$ 35 find the cost of each stool and each chair
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6 stools and 4chairs cost$58 but 5 stools and 2 chairs cost$ 35 find the cost of each stool and each chair
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May 28, 2018
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6 stools and 4chairs cost$58 but 5 stools and 2 chairs cost$ 35 find the cost of each stool and each chair
Mathematics
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Daniel Rosenwasser
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stool = s, chair = c
6s+4c=58 ---(1)
5s+2c=35 ---(2)
(2)*2; 10s+4c=70 ---(3)
(3)-(1); 4s=12
so s=3
from (2)
5s+2c= 35
5(3)+2c=35
2c = 35-15
2c = 20
so c=10
then the cost of each stool is $3 and the cost of each chair is $10
Nhaus
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Jun 1, 2018
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Nhaus
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