Answer:
3) 87.9 or 1) 12.5
Step-by-step explanation:
they did multiply then subtract
Answer:
Rate=9.05%
Step-by-step explanation:
Let P represent the Principal ,t the time = 8 years and r be the rate of interest.
It is given money doubles in 8 years so A=2P.
The compound interest is given by the formula :
![A= P(1+r^{)t}](https://tex.z-dn.net/?f=A%3D%20P%281%2Br%5E%7B%29t%7D)
Substituting the values we have:
![2P=P( 1+r^){8}](https://tex.z-dn.net/?f=2P%3DP%28%201%2Br%5E%29%7B8%7D)
Dividing both sides by P :
![2=(1+r)^{8}](https://tex.z-dn.net/?f=2%3D%281%2Br%29%5E%7B8%7D)
![2^{\frac{1}{8} } =1+r](https://tex.z-dn.net/?f=2%5E%7B%5Cfrac%7B1%7D%7B8%7D%20%7D%20%3D1%2Br)
1.0905-1=r
r=0.09050
r=9.05%
Answer: 1.2(7x - 6y) is equivalent to 8.4x- 7.2y
Step-by-step explanation:
took the test
Answer:
Gymnastics
Step-by-step explanation: