SOLUTION: Solve the system of equations in Problem y = 0.08x Y = 100 + 0.04x

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Question 943545: Solve the system of equations in Problem
y = 0.08x
Y = 100 + 0.04x
Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!

y+=+0.08x.........eq.1
y+=+100+%2B+0.04x.........eq.2
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y+=+100+%2B+0.04x.........eq.2 substitute +0.08x for y+
+0.08x+=+100+%2B+0.04x....solve for x
+0.08x+-0.04x=+100+
+0.04x=+100+....multiply both sides by 100
+4x=+10000+
+x=+10000%2F4+
+highlight%28x=+2500%29
go to y+=+0.08x.........eq.1 substitute +2500 for x+ and solve for y
y+=+0.08%2A2500
highlight%28y+=+200%29