Answer:
11 half years
Step-by-step explanation:
The formula for compound interest is
A = P(1+r/n)^(nt), with r representing the interest rate, n being the number of times interest is applied over the time period, and t being the amount of time periods.
If we make the time period a half year (so interest is compounded once per time period), n=2. Then, our interest rate is 7%, or 0.07 (to convert from percent to decimal, simply divide by 100). Our starting amount is 500, and we want it to double, making it 1000. Our formula is thus
1000 = 500 (1+0.07)^(t)
divide both sides by 500
2 = (1+0.07)^(t)
2 = (1.07)^(t)
Using logarithms, we can say that
and using a calculator, we get
10.24 = t
Since interest is only compounded once per time period, though, we have to round up to make sure it doubles, so t = 11
Answer:
1/4
Step-by-step explanation:
-2 2/5 + 3 1/4 - 3/5
-12/5 + 13/4 - 3/5 =
1/4
Answer:
1. k= 6
2. z= 4
Step-by-step explanation:
1. Given equation is:
6k+8=-10
We will solve the equation.
Subtracting 8 from both sides
6k+8-8 = -10-8
6k = -18
Dividing both sides by 6
2. Given equation is:
5z-5=15
We will solve the equation.
Adding 5 on both sides
5z-5+5=15+5
5z=20
Dividing both sides by 5
Hence,
1. k= 6
2. z= 4
Answer:
95%
Step-by-step explanation:
5 player won, meaning 95 player didn't.
This means that 95% of the players didn't win.
Answer:
A
Step-by-step explanation:
9 - 28 = -15