Questions on Word Problems: Money, Business and Interest answered by real tutors!

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Question 856622: The cost C (in dollars) of manufacturing x wheels at Deon's Bicycle Supply is given by the function C(x)= 0.1x^2-60x+22,744. What is the minimum cost of manufacturing wheels? Do not round your answer.
Click here to see answer by josmiceli(19441)

Question 856827: An investment pays simple interest, and quadruples in 12 years. What is the interest rate?

Click here to see answer by mananth(16946)

Question 857006: In how many years will $350 amount to $1000 at 6% compounded semiannually?
Click here to see answer by ewatrrr(24785)

Question 857009: The half-life (h) of carbon-14 is approximately 6000 years.Determine how much of a 100 g sample will remain after 1,200 years?
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Question 857011: Assuming that the Indians really did sell Manhattan for the legendary $24, further assuming that the sale took place exactly 300 years ago compute amount of money the Indians would now have if they had placed the money in a bank that paid 5% interest per year, compounded continuously and kept it there until today.
Click here to see answer by JulietG(1812)

Question 857191: If I invested $78,000 and got a return of 10% a year and did not touch it for 10 years how much money would I have.
Click here to see answer by Alan3354(69443)

Question 857721: Suppose you invest $1000 in a savings account that pays 2.5% annual interst. How much will be in the account after 5 years?
Click here to see answer by mananth(16946)

Question 857804: An item is being sold for 240 dollars at a 36% discount, what is the original price of the item?
Click here to see answer by JulietG(1812)

Question 857861: 10. Find the exact interest for $600 at 8% for 45 days. (Round to the nearest cent.)

Click here to see answer by rvfer(117)

Question 857872: How long would it take to double your principal in an account that pays 6.5% annual intrest compounded continuously?
Click here to see answer by Alan3354(69443)

Question 855214: An investment of $2,000 is earning interest at the rate of 6.2% compounded quarterly over 5 years. Approximately how much interest is earned on the investment?

Click here to see answer by kierra2(1)

Question 858356: The current price of sugar is $5, which is 25% more than it used to be. What is the previous price?
Click here to see answer by checkley79(3341)

Question 858480: If a savings account pays 3% simple annual interest, a deposit of $250 will earn in 2 years?
Click here to see answer by jim_thompson5910(35256)

Question 858514: How much positive interest is accumulated when your have $5,000 and earn $400 over two years?

Click here to see answer by Alan3354(69443)

Question 858558: a buisness had $10,000 profit in 2000. then the profit increased by 8% each year for the next 10 years. write a function that models the profit in dollars over time
Click here to see answer by josmiceli(19441)

Question 858606: If $4000 is borrowed at a rate of 4.75% interest per year, compounded quarterly, find the amount due at the end of the given number of years. (Round your answers to the nearest cent.)
a) 5 years
b) 7 years
c) 9 years
Click here to see answer by lwsshak3(11628)

Question 859217: Use the formula A = P \left(1 + \frac{r}{n}\right)^{nt} to find the total amount of money accumulated for an initial investment \$1{,}000 at 12% compounded quarterly after 9 years.
Click here to see answer by ewatrrr(24785)

Question 859234: ln (a+b) + 5 ln (a-b) - 3 ln c
as a single logarithm ln A. Then the function
A=
Click here to see answer by ewatrrr(24785)

Question 859241: Write the following expression as a single logarithm with a coefficient of 1:
ln(x+1) + ln(x-5) =
Click here to see answer by ewatrrr(24785)

Question 859283: joan wants to buy at least 100 marbles, but the marbles are sold in bags of eight.how many bags must she buy to get at least 100 marbles?

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Question 859302: if katie bought a crib for $260 and she had a coupon for a 10% discount then how much money did she save with the discount.

Click here to see answer by jim_thompson5910(35256)

Question 859302: if katie bought a crib for $260 and she had a coupon for a 10% discount then how much money did she save with the discount.

Click here to see answer by josmiceli(19441)

Question 859518: the current petrol price per litre is R13.20 if the price increase by 7.5 persent how much will a litre of patrol of patrol then cost
Click here to see answer by stanbon(75887)

Question 859496: if I invest $5000 at 10% compounded Semi annually how much will I have at the end of 7 yrs?
Click here to see answer by ewatrrr(24785)

Question 859498: If I invest $10,000 and it grows to 25,000 in 12 years what is the annual interest rate if the interest is compounded quarterly?
Click here to see answer by ewatrrr(24785)

Question 859536: $15,000 is invested in a fund that has a return of 5%. How much money is with a 4% return if the total return on both investments is $1190?
Click here to see answer by ewatrrr(24785)

Question 859552: 50 tickets were sold to a Christmas play. The adult tickets were $5 and the student tickets were $3. $190 was made. How many tickets of each type were sold?
Click here to see answer by ewatrrr(24785)

Question 859649: which is better choice when purchasing a $20000 car: a) a 4 year loan at 4 % b) an immediate rebate of $2000 and a 4 year loan at 10%. Show formulas or steps to solve it.
Click here to see answer by Alan3354(69443)

Question 859705: Janice has a savings account that has increased in value over 12months from $8765 to $9006.04. What is the annual percent interest earned over the 12 month period?
I tried to mimic the examples shown in my book but it doesn't come out right. I checked my answer in the back of the book but I get something else and its just confusing me now. I would really appreciate some help...
Click here to see answer by solver91311(24713)

Question 859737: If a car is sold for $550 an the resold for $690 what percentage profit has been made on the sale of the car

Click here to see answer by ewatrrr(24785)

Question 859841: find the amount of time required for an investment to double at a rate of 9.5%. if the interest is compounded continuously?
Click here to see answer by ewatrrr(24785)

Question 859894: Hello, I would like someone to check if I did this correctly please!
Given: Bank A is lending money at 5.7% interest compounded annually. The rate of bank B is 5.65% compounded monthly. At which bank will you pay the less interest over 10 years period? A hint is the given formula S=P(1+r/n)^t*n where P dollars are deposited into an account paying an annual rate of interest r compounded n times per year, then after t years the account will have S dollars.
My work:
For Bank A S=P(1+.057/1)^10*1 so about P(1.7408)
For Bank B S=P(1+.0565/12)^10*12 so about P(1.757)
What I'm worried about is what the question is asking for (paying the less interest). Since bank A has less money deposited does that mean that in Bank A you pay less? So the answer would be bank A?
Thanks in advance!
Click here to see answer by richwmiller(17219)

Question 860170: suppose you are setting up a small business and have invested $6000 to produce an item that will sell for $8.50. if each unit can be produced for $6, how many must you sell to breakeven
Click here to see answer by ewatrrr(24785)

Question 860537: Ed Moura has $33000 invested in stocks paying 5%. How much additional money should he invest in certificates of deposit paying 2% so that the average return on the two investments is 3%?
He should invest $__ in certificates of deposit.
Click here to see answer by mananth(16946)

Question 860611: If I have 23,000 in a bank at .10 % instrest how much instrest would I have in 13 years
Click here to see answer by Kingsley(15)

Question 860667: Find the interest rate to the nearest hundredth of a percentage that will produce $3000.00, if $2500.00 is left at interest rate compounded semiannually for 4.5 years. Thank you so much.
Click here to see answer by ewatrrr(24785)

Question 860796: the sales tax on a purchase of used truck is 575. If the tax rate is 5%, find the purchase price of the truck.
Click here to see answer by josmiceli(19441)

Question 860819: the amount of sale tax on a stove costs x dollars if the tax rate is 4%
Click here to see answer by ewatrrr(24785)

Question 860818: I have been stuck on this problem all day, please explain:
Under normal conditions a population of rabbits has an exponential growth rate of 11.8% per day. Consider an initial population of 100 rabbits.
A. Find the exponential growth function. B. When will the population reach 1,000 rabbits? C. How many rabbits will there be after 30 days?

Click here to see answer by ewatrrr(24785)

Question 860881: The difference of two numbers is 8. Twice the smaller is 4 more than the larger. Find the two numbers.
Click here to see answer by ben720(159)

Question 859983: Find the required annual interest rate to the nearest tenth of a percent for $1100 to grow to 1700 if interest is compounded quarterly by 7 years.
Click here to see answer by Fombitz(32388)

Question 860951: how many years will it take $6,000 to grow to $10,000 if it is invested at 3%
(A) compounded quarterly? (B) compounded continuously?
Click here to see answer by ewatrrr(24785)

Question 860952: a dress is sold making 20% profit on the cost price of the dress if it sold for$72
Click here to see answer by ewatrrr(24785)

Question 861026: A woman earns $1,400 in interest from two accounts in a year. If she has three times as much invested at 8% as she does at 4%, how much does she have in each account?
Click here to see answer by ewatrrr(24785)

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