Alana biked 45 minutes in 3 hours.
Answer:
17.3 years
Step-by-step explanation:
For some annual interest rate r and time in years t, the initial account value is multiplied by e^(rt).
You want the multiplier e^(.04t) to have a value of 2:
2 = e^(.04t)
ln(2) = 0.04t . . . . . take natural logs
t = ln(2)/0.04 = 17.329 . . . . . divide by the coefficient of t
It will take about 17.3 years for the investment to double.
Answer: D
Step-by-step explanation:
Take the negative answers out since the line is going up, and I used rise over run.
Independent variable: The number of houses Harold sells
Dependent Variable: The amount of money Harold earns
Function: f(x)=250,000(x)
x represents how many houses Harold sells, and f represents how much money Harold earns.
Now, let's solve the problem.
f(x)=250,000(9)
f(x)=2,250,000
Harold earns $2,250,000
Answer: x = 6
Step-by-Step Explanation:
=> -9x + 2x + 32 = -10
= -7x + 32 = -10
= -7x = -10 - 32 = -42
=> x = -42/-7 = 42/7 = 6
Therefore, x = 6
