Can someone please check my financial algebra work
Missy knows that she needs $40,000 for a down payment on a house. She found an investment that earns 3.05% interest compounding monthly. She would like to purchase the home in 5 years. How much should she put in the account now to ensure she has her down payment? $8,872.33 $27,770.97 $46,580.69 I chose this response $34,349.00
Rehan has been awarded some money in a settlement. He has the option to take a lump sum payment of $170,000 or get paid an annuity of $1,000 per month for the next 20 years. Which is the better deal for Rehan, and by how much, assuming the growth rate of the economy is 3.05% per year? Lump Sum: by $63,712.66 Lump Sum: by $7,707.19 I chose this response Annuity: by $63,712.66 Annuity: by $7,707.19
Becky is 18 and would like to buy a house when she is 36. What is the discount factor for today’s prices if the housing values increase 6% per year? 65.0% 16.7% 12.3% 35.0% I chose this response
acob is saving up for a down payment on a car. He plans to invest $2,000 at the end of every year for 5 years. If the interest rate on the account is 2.25% compounding annually, what is the present value of the investment? $5,666.58 $10,461.24 I chose this response $9,358.91 $37,731.88
Sammy has an annuity that pays him $9600 at the beginning of each year. Assume the economy will grow at a rate of 3.1% annually. What is the value of the annuity if he received it now instead of over a period of 10 years? $78,044.65 $80,651.16 $81,075.98 I chose this response $83,999.29
@amistre64
@abb0t
your 1st choice is incorrect... the investment to get a $40000 deposit is greater than the deposit. so start with A- the future value = $40000 and you need to find P the principal using the compound interest formula \[40000 = P \times (1 + \frac{3.05}{100})^{12 \times 5}\] I've assumes the interest is monthly... if its something else you'll need to change it
ok what about number 2 @campbell_st
so in the 1st question is the interest per annum or per month?
monthly right?
so i think because it states that she found an investment that earns 3.05% interest compounding monthly.
ok.... well that's interesting as the answer doesn't match the choices.
hmm
ok... so in question 1, the interest rate is per annum so you need to change it to monthly but you are still finding P \[40000 = A(1 + \frac{3.05 \div 12}{100})^{5 \times 60}\]
40,000×(1+(0.0305/12))60 yeah
so solve for P
oops should be P and not A in the formula
I got by solving 40,000×(1+(0.0305/12))60 =46580.6854454199600147
which is the response i chose
@campbell_st
just check it as I got \[P = 40000 \div (1 + 0.0305 \div 12)^{60}\]
which gave me the last answer
sorry I can't help with the others, I have to go
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