Question

Problem 8 - Simple and Compound Interest

Answer 1

Answer:

P8) $t=7.02 years$

P4) Today you have to invest $6941.55

P8) Is the same P8 above

Step-by-step explanation:

P8) First of all, we can list the knowns $VP=7425.70$, $I=3250$ and $i=5.3$%, so we use $VF=VP+I=7425.70+3250=10675.70$ then we use $t=\frac{ln(VF/VP)}{ln(1+i)}=\frac{ln(10675.70/7425.70)}{ln(1+0.053)} =\frac{0.363}{0.051}=7.02 years$

P4) First of all, we can list the knowns $VF=9500$, $t=8$ and $i=4$%, so we use $VP=\frac{VF}{(1+i)^{t} } =\frac{9500}{(1+0.04)^{8} } =6941.55$

P8) Is the same P8 above