2 4/9, 2 2/3, then 2 6/15.
If your looking for individual ratios it would be
A: 3:8
B: 2:8 or 1:4
C: 3:8
we know that
The simple interest formula is equal to
![A=P(1+rt)](https://tex.z-dn.net/?f=A%3DP%281%2Brt%29)
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
![t=5\ years\\ P=\$8,500\\ A=\$10,093.75\\r=?](https://tex.z-dn.net/?f=t%3D5%5C%20years%5C%5C%20P%3D%5C%248%2C500%5C%5C%20A%3D%5C%2410%2C093.75%5C%5Cr%3D%3F)
substitute in the formula above
![10,093.75=8,500*(1+r*5)](https://tex.z-dn.net/?f=10%2C093.75%3D8%2C500%2A%281%2Br%2A5%29)
solve for r
![5*r=(10,093.75/8,500)-1](https://tex.z-dn.net/?f=5%2Ar%3D%2810%2C093.75%2F8%2C500%29-1)
![r=0.0375](https://tex.z-dn.net/?f=r%3D0.0375)
![r=3.75\%](https://tex.z-dn.net/?f=r%3D3.75%5C%25)
therefore
<u>the answer is</u>
the rate of interest is ![3.75\%](https://tex.z-dn.net/?f=3.75%5C%25)
the larger the sample the more accurate the prediction
so since Tim looked at a larger quantity of coins his would be more accurate
Since the scale factor is 3:1 you can multiply the length of the side of the triangle to the right by 3 to make the ratio 3:3
the equation would be:
2x+5 = 45
subtract 5 from both sides
2x = 40
divide both sides by 2
x = 20
hope this helps