Thursday

July 24, 2014

July 24, 2014

Posted by **billy** on Monday, March 3, 2014 at 11:24pm.

- algebra -
**PsyDAG**, Tuesday, March 4, 2014 at 3:45pmA = 450 - C

70A + 40C = 27750

Substitute 440-C for A in second equation and solve for C. Insert that value into the first equation and solve for A. Check by inserting both values into the second equation.

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