14 POINTS!! PLEASE HURRY!! Solve the system by graphing. Explain you answer!!
1 answer:
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Answer:
<u>3.63 years</u>
Step-by-step explanation:
The formula would be of compound growth, which is:
Where
F is future amount (with interest)
P is initial deposit
r is rate of interest in a year
n is number of compounding in 1 year
t is the time in years
Given in this problem:
To accumulate 2000 interest means the future amount will be:
10000+2000 = 12,000
Present amount is 10,000
r is the annual interest, which is 5% or 0.05
compounded monthly means, 12 times a year, so n = 12
t is time in years, which we need to find
Substituting, we have:
The time it will take is around <u>3.63 years</u>
Answer:
20 rides.
The question:
"There have been two proposals for ticket sales. The first proposes a base fee of $5 for entry into the park and $0.50 per ride. The second plan has no base fee, but charges $0.75 per ride. After How many rides would the cost[s] be equal?"
Step-by-step explanation:
Assume that the two costs become equal after rides.
- The first plan will cost
dollars.
- The second plan will cost
dollars.
The two costs are assumed to be equal. That is:
.
Subtract from both sides of this equation:
.
.
In other words, the two costs become equal after 20 rides.