SOLUTION: determine the unknown quantities and represent these with appropriate variables.
determine the equations of the linear system that models the problem and solve.
Monique is st
Algebra.Com
Question 334509: determine the unknown quantities and represent these with appropriate variables.
determine the equations of the linear system that models the problem and solve.
Monique is starting her own on-line business selling jewellery that she makes. It cost her $3000 to buy a new computer, and monthly expenses for Internet service and materials average about $175 per month. If her revenue for each month averages about $420, how long will it be before she starts to turn a profit?
thankyou
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the number of months that she has been in business.
Since it costs her $175 per month, but she has $420 revenue per month, her net income is $245. So her profit, after months is 
from which you need to subtract the initial $3000 expense. We want this to be greater than or equal to zero, so:
Just solve for and then select the next higher integer, presuming that she accounts for a given month at the end of that month.
John
My calculator said it, I believe it, that settles it
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