Answer:
f(x) = 300,000(1.05)^x
Step-by-step explanation:
Use the exponential growth equation:
f(x) = a(1 + r)^x
Plug in 300,000 as a, since it is the original population:
f(x) = 300,000(1 + r)^x
The city's population is growing at 5% each year, so plug in 0.05 as r:
f(x) = 300,000(1 + 0.05)^x
f(x) = 300,000(1.05)^x
So, the function for the population growth is f(x) = 300,000(1.05)^x
Answer:
There are 9 dimes and 15 nickels.
Step-by-step explanation:
Let number of dimes be 'd' and number of nickels be 'n'.
Given:
Total amount Debi has = $1.65
Number of nickels is 6 more than dimes.
We know that,
1 dime = $0.10
∴ 'd' dimes = $
1 nickel = $0.05
∴ 'n' nickels = $
As per question,
Number of nickels = 6 + number of dimes
∴ --------1
Also, total amount = $1.65
∴ ------2
Now, solving equations (1) and (2) for 'n' and 'd'.
Plug in the value of 'n' from equation (1) in equation (2). This gives,
Therefore, the number of dimes are 9.
Number of nickels are = 9 + 6 = 15
Answer:
4 meters per second
Step-by-step explanation:
120 divided by 30 = 4
Answer:
2.36 in.
Step-by-step explanation:
1 foot is equivalent to 1/80 in.
So 189 feet is equivalent to 189/80 in = 2.36 in.