SOLUTION: Solve for c:
54=(2c)+22.5+(5.7/c)
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Question 85627: Solve for c:
54=(2c)+22.5+(5.7/c)
Found 2 solutions by scianci, stanbon:
Answer by scianci(186) (Show Source): You can put this solution on YOUR website!
Isolate the variables:
54 - 22.5 = 2c +
31.5 = 2c +
Multiply everything by c:
31.5c = + c
31.5c = + 5.7
Set = 0:
- 31.5c + 5.7 = 0
Multiply by 10 [to shift the decimal points]:
- 315c + 57 = 0
Apply the quadratic formula:
x =
=
=
=
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve for c:
54=(2c)+22.5+(5.7/c)
2c-31.5+(5.7/c)=0
-----------------
Multiply thru by c to get:
2c^2-31.5c+5.7 = 0
20c^2-315c+57 = 0
c=[315+-sqrt(315^2-4*20*57)/40
c=[315+-307.68]/40
c= 0.18 or c=15.57
===========
Cheers,
stan H.
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