
Mark M. answered 01/21/15
Tutor
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(278)
Mathematics Teacher - NCLB Highly Qualified
0.08(6800) + 0.03x = 0.04(6800 + x)
544 + 0.03x = 272 + 0.04x
272 = 0.01x
27200 = x
$27,200 additional must be invested.