HELLOOOOOOOOOOOOOOOOOOOOOOOOOOOOO :D
Answer:
Eraser cost €0,2
Step-by-step explanation:
Cost of ereaser - x
Cost of pencil - x + 1
x + x + 1 = 1,4
2x + 1 = 1,4
2x = 0,4
x = 0,2
Hello!
Out equation is: ![A=P(1+\frac{r}{n} )^t^n](https://tex.z-dn.net/?f=A%3DP%281%2B%5Cfrac%7Br%7D%7Bn%7D%20%29%5Et%5En)
A= 6000
P=5000
N=1
T=5
R= What we are trying to find
This means we will have ![6000=5000(1+r)^5](https://tex.z-dn.net/?f=6000%3D5000%281%2Br%29%5E5)
Divide both sides by 5000:
![\frac{6000}{5000} = (1+r)^5](https://tex.z-dn.net/?f=%5Cfrac%7B6000%7D%7B5000%7D%20%3D%20%281%2Br%29%5E5)
Move the power to the other side by rooting both sides:
![\frac{6000}{5000} ^1^/^5 = 1+r](https://tex.z-dn.net/?f=%5Cfrac%7B6000%7D%7B5000%7D%20%5E1%5E%2F%5E5%20%3D%201%2Br)
Subtract 1 from both sides:
![\frac{6000}{5000} ^1^/^5 -1 = r](https://tex.z-dn.net/?f=%5Cfrac%7B6000%7D%7B5000%7D%20%5E1%5E%2F%5E5%20-1%20%3D%20r)
Now we just need to calculate: R = 0.03713728...
I don't know how many decimal places you can have, but I will round to 2. This will give you an Interest Rate of 3.71%.
I hope this helps! :)
Answer:
D
Step-by-step explanation:
Volume for a sphere: 4/3(pi)r^3
4/3(pi)(1x1x1)= 4/3pi
hope this helped :)
Answer:
22.5% increase.
Step-by-step explanation:
Because her collection grows by 9, that means it increases by 9/40 total. As a decimal, this would be 0.225. Then, as a percent you multiply that by 100 to get 22.5%. Pilar's collection increased by 22.5%