SOLUTION: Sally Mae wants to invest in a tire company. She finds 3 of the best tire companies in her area... Company A, Company B, and Company C. She decides that she will invest in the one

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Question 1013663: Sally Mae wants to invest in a tire company. She finds 3 of the best tire companies in her area... Company A, Company B, and Company C. She decides that she will invest in the one that sold the most tires within that month. If Company A sold 15% more than Company C and Company B sold 60% more than Company C, then how many tires did each company sell and who sold the most if Company B sold 150 tires?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +a+ = number sold by A
Let +b+ = number sold by B
Let +c+ = number sold by C
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(1) +a+=+c+%2B+.15c+
(2) +b+=+c+%2B+.6c+
(3) +b+=+150+
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There are 3 equations and 3 unknowns,
so it's solvable
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(2) +150+=+c+%2B+.6c+
(2) +1.6c+=+150+
(2) +c+=+93.75+
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(1) +a+=+c+%2B+.15c+
(1) +a+=+1.15c+
(1) +a+=+1.15%2A93.75+
(1) +a+=+107.81+
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Company B sold more than A or C