As it is simple interest, you simply need to find what 4.5% of $2300 is, and then multiply this answer by 10. If it would have been compound interest, it would have been much more difficult. There are a number of ways that you can find out what 4.5% is, you can either divide $2300 by 100, and then multiply by 4.5, or you can find 1%, and multiply by 4.5. Personally, I think that doing it the first way is easier. $2300/100= 23. 23*4.5= $103.50 Therefore, the interest for 1 year is $103.50. In order to find what ten years is, you simply have to multiply this by 10. $103.50*10= $1035 To find the total value, you simply have to add the original investment ($2300) and the interest ($1035) together. $2300+$1035= $3335 Therefore, the total of the investment after 10 years is $3335.
The four chairs bought in June cost $35 each, all together $140. Then they bought 2 more chairs on sale for 8% off of $35 each or 92% of $35 which is $32.2 each, all together $64.4. Both buy's together would then equal $204.4
