Answer:

multiply all terms in the top equation by 2
multiply all terms in the second equation by -7. it would then add the two equations together to cancel out the variable x
You will then have two equations in terms of y
solve for y and either equation then substitute that value for y into the other equation then solve for x
The bike is now $500. The price goes down by 20% each year.
500(0.20) = 100
The bike decreases by $100 each year.
After 5 years at $100 less per year, the bike will be $0.00.
529.72......................
Answer:
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Step-by-step explanation:
Answer:
-5
Step-by-step explanation: