Solve 3x+4+7x+8+7x3+7x3
2 answers:
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Answer:
The semiannual interest payment is $485.5
The total interest earned over the life of the bond is $10,681
Step-by-step explanation:
The formula of the simple interest is I = Prt, where
- P is the money invested
- r is the interest rate in decimal
- t is the time in years
∵ The bond is $20,000
∴ P = 20,000
∵ First Income Fund 11-year bond at 4.855%
∴ t = 11
∴ r = 4.855%
- Change it to decimal by divide it by 100
∴ r = 4.855 ÷ 100 = 0.04855
∵ The semiannual interest payment = P × r × half a year
∴ The semiannual interest payment = 20,000 × 0.04855 × (1)
∴ The semiannual interest payment = 485.5
The semiannual interest payment is $485.5
∵ I = Prt
- Substitute the values of P, r and t in the formula
∴ I = 20,000(0.04855)(11)
∴ I = 10,681
The total interest earned over the life of the bond is $10,681
a)
Check the picture below.
b)
volume wise, we know the smaller pyramid is 1/8 th of the whole pyramid, so the volume of the whole pyramid must be 8/8 th.
Now, if we take off 1/8 th of the volume of whole pyramid, what the whole pyramid is left with is 7/8 th of its total volume, and that 7/8 th is the truncated part, because the 1/8 we chopped off from it, is the volume of the tiny pyramid atop.
Now, what's the ratio of the tiny pyramid to the truncated bottom?
