B i think on #2
hope this helps
9514 1404 393
Answer:
Step-by-step explanation:
Solving for r when n=2, we have ...
![A=P(1+r)^2\\\\\dfrac{A}{P}=(1+r)^2\\\\\sqrt{\dfrac{A}{P}}=1+r\\\\\boxed{r=\sqrt{\dfrac{A}{P}}-1}](https://tex.z-dn.net/?f=A%3DP%281%2Br%29%5E2%5C%5C%5C%5C%5Cdfrac%7BA%7D%7BP%7D%3D%281%2Br%29%5E2%5C%5C%5C%5C%5Csqrt%7B%5Cdfrac%7BA%7D%7BP%7D%7D%3D1%2Br%5C%5C%5C%5C%5Cboxed%7Br%3D%5Csqrt%7B%5Cdfrac%7BA%7D%7BP%7D%7D-1%7D)
For the given values of A and P, the value of r is ...
![r=\sqrt{\dfrac{5600}{5000}}-1=\sqrt{1.12}-1\approx 1.0583-1\\\\\boxed{r\approx 6\%}](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cdfrac%7B5600%7D%7B5000%7D%7D-1%3D%5Csqrt%7B1.12%7D-1%5Capprox%201.0583-1%5C%5C%5C%5C%5Cboxed%7Br%5Capprox%206%5C%25%7D)
Answer:
19.5 miles per hour
Step-by-step explanation:
We need to change 20 minutes to hours
1 hours = 60 minutes
20 minutes * 1 hour/60 minutes = 1/3 hour
To find miles per hour we take the miles and divide by hours
6.5 miles
---------------- = 19.5 miles per hour
1/3 hours
Answer:
9 1/3
Step-by-step explanation:
Make 2/3 , 1/2 , & 1/6 have the same denominator. 6 is the least common multiple for all 3 fractions.
2/3 gets multiplied by 2/2
1/2 gets multiplied by 3/3
1/6 stays the same
2/3 becomes 4/6
1/2 becomes 3/6
1/6 stays 1/6
Follow the order of operations from the original equation.
4/6 - 3/6 = 1/6 then 1/6 + 1/6 = 2/6
6 - 1 = 5 then 5 + 4 = 9
Simplify 2/6 to 1/3
Remember to add 1/3 back to 9 making it 9 1/3
Answer: 96%
Step-by-step explanation:
There are 25 total cyclists and 24 of those finished the race in less than 51 minutes. The question would like this 24 to be expressed as a percentage of 25.
In percentage this would be:
= Number of cyclists who finished in 51 minutes / Total number of cyclists * 100%
= 24 / 25 * 100%
= 96%