Price Appreciation of Homes What will a $90,000 condominium cost 5 years from now if the price appreciation for condos over that period averages 3% compounded annually? Credit Card Interest

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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43,49 please help
32. What rate of interest compounded annually is required to
22. To get $800 after 2, years at 8% compounded continuously
will he have enough money to buy a computer system that
48. Return on an Investment A business purchased for $650,000
matures in 3 months. Then Kim places the $1000 and the
costs $1060? If another bank will pay Jim 5.9% compounded
interest in a passbook account that pays 5.25% compounded
that pays 5.6% compounded continuously. After 1 year,
monthly. How much does Kim have in the passbook account
of deposit that pays 6.8% compounded continuously and
49. Comparing Savings Plans Jim places $1000 in a bank account
50. Savings Plans On January 1, Kim places $1000 in a certificate
5years at 7% compounded monthly
30. 8% compounded semiannually or 7.9% compounded daily
28. 9% compounded quarterly or 9-% compounded annually
51.
332 CHAPTER 5 Exponential and Logarithmic Functions
20. To get $300 after 4 years at 3% compounded daily
noitu
,1
15. To get $100 after 2 years at 6% compounded monthly
To get $800 after 3
17. To get $1500 after 2 years at 1.5% compounded daily
19. To get $750 after 2 years at 2.5% compounded quarterly
21. To get $120 after 3- years at 5% compounded continuously
In Problems 23-26, find the effective rate of interest.
\ 23. For 5% compounded quarterly
25. For 4% compounded continuously
24. For 6% compounded monthly
26. For 6% compounded continuously
53
In Problems 27-30, determine the rate that represents the better deal.
4.
27. 6% compounded quarterly or 6-% compounded annually
29. 9% compounded monthly or 8.8% compounded daily
\ 31. What rate of interest compounded annually is required to
double an investment in 3 years?
double an investment in 6 years?
34. What rate of interest compounded annually is required
triple an investment in 10 years?
36. (a) How long does it take for an investment to triple in valu
if it is invested at 6% compounded monthly?
(b) How long does it take if the interest is compounded
continuously?
38. What rate of interest compounded continuously will yield an
33. What rate of interest compounded annually is required to
triple an investment in 5 years?
35. (a) How long does it take for an investment to double in
value if it is invested at 8% compounded monthly?
(b) How long does it take if the interest is compounded
continuously?
37. What rate of interest compounded quarterly will yield an
effective interest rate of 7%?
effective interest rate of 6%?
(h) Here use
rib
22922A
Applications and Extensions
39. Time Required to Reach a Goal If Tanisha has $100 to invest
at 4% per annum compounded monthly, how long will it be
before she has $150? If the compounding is continuous, how
long will it be?
40. Time Required to Reach a Goal If Angela has $100 to invest
at 2.5% per annum compounded monthly, how long will it be
before she has $175? If the compounding is continuous, how
long will it be?
41. Time Required to Reach a Goal How many years will it
take for an initial investment of $10,000 to grow to $25,000?
Assume a rate of interest of 6% compounded continuously.
42. Time Required to Reach a Goal How many years will it
take for an initial investment of $25,000 to grow to $80,000?
Assume a rate of interest of 7% compounded continuously.
43. Price Appreciation of Homes What will a $90,000 condominium
cost 5 years from now if the price appreciation for condos over
that period averages 3% compounded annually?
44. Credit Card Interest A department store charges 1.25%
per month on the unpaid balance for customers with charge
accounts (interest is compounded monthly). A customer
charges $200 and does not pay her bill for 6 months. What is
46. Paying off a Loan John requires $3000 in 6 months to pay
off a loan that has no prepayment privileges. If he has
the $3000 now, how nuch of it should he save in an account
paying 3% compounded monthly so that in 6 months he will
have exactly $3000?
47. Return on a Stock George contemplates the purchase
of 100 shares of a stock selling for $15 per share. The
stock pays no dividends. The history of the stock indicales
that it should grow at an annual rate of 15% per yeal.
How much should the 100 shares of stock be woru
in 5 years?
in 2010 is sold in 2013 for $850.000, What is the annual to
of return for this investment?
monthly, is this a better deal?
the bill at that time?
45. Saving for a Car Jerome will be buying a used car for $15.000
in 3 years. How much money should he ask his parents for
now so that, if he invests it at 5% compounded continuously.
he will have enough to buy the car?
on May 1?
in ba
deos bub
Transcribed Image Text:32. What rate of interest compounded annually is required to 22. To get $800 after 2, years at 8% compounded continuously will he have enough money to buy a computer system that 48. Return on an Investment A business purchased for $650,000 matures in 3 months. Then Kim places the $1000 and the costs $1060? If another bank will pay Jim 5.9% compounded interest in a passbook account that pays 5.25% compounded that pays 5.6% compounded continuously. After 1 year, monthly. How much does Kim have in the passbook account of deposit that pays 6.8% compounded continuously and 49. Comparing Savings Plans Jim places $1000 in a bank account 50. Savings Plans On January 1, Kim places $1000 in a certificate 5years at 7% compounded monthly 30. 8% compounded semiannually or 7.9% compounded daily 28. 9% compounded quarterly or 9-% compounded annually 51. 332 CHAPTER 5 Exponential and Logarithmic Functions 20. To get $300 after 4 years at 3% compounded daily noitu ,1 15. To get $100 after 2 years at 6% compounded monthly To get $800 after 3 17. To get $1500 after 2 years at 1.5% compounded daily 19. To get $750 after 2 years at 2.5% compounded quarterly 21. To get $120 after 3- years at 5% compounded continuously In Problems 23-26, find the effective rate of interest. \ 23. For 5% compounded quarterly 25. For 4% compounded continuously 24. For 6% compounded monthly 26. For 6% compounded continuously 53 In Problems 27-30, determine the rate that represents the better deal. 4. 27. 6% compounded quarterly or 6-% compounded annually 29. 9% compounded monthly or 8.8% compounded daily \ 31. What rate of interest compounded annually is required to double an investment in 3 years? double an investment in 6 years? 34. What rate of interest compounded annually is required triple an investment in 10 years? 36. (a) How long does it take for an investment to triple in valu if it is invested at 6% compounded monthly? (b) How long does it take if the interest is compounded continuously? 38. What rate of interest compounded continuously will yield an 33. What rate of interest compounded annually is required to triple an investment in 5 years? 35. (a) How long does it take for an investment to double in value if it is invested at 8% compounded monthly? (b) How long does it take if the interest is compounded continuously? 37. What rate of interest compounded quarterly will yield an effective interest rate of 7%? effective interest rate of 6%? (h) Here use rib 22922A Applications and Extensions 39. Time Required to Reach a Goal If Tanisha has $100 to invest at 4% per annum compounded monthly, how long will it be before she has $150? If the compounding is continuous, how long will it be? 40. Time Required to Reach a Goal If Angela has $100 to invest at 2.5% per annum compounded monthly, how long will it be before she has $175? If the compounding is continuous, how long will it be? 41. Time Required to Reach a Goal How many years will it take for an initial investment of $10,000 to grow to $25,000? Assume a rate of interest of 6% compounded continuously. 42. Time Required to Reach a Goal How many years will it take for an initial investment of $25,000 to grow to $80,000? Assume a rate of interest of 7% compounded continuously. 43. Price Appreciation of Homes What will a $90,000 condominium cost 5 years from now if the price appreciation for condos over that period averages 3% compounded annually? 44. Credit Card Interest A department store charges 1.25% per month on the unpaid balance for customers with charge accounts (interest is compounded monthly). A customer charges $200 and does not pay her bill for 6 months. What is 46. Paying off a Loan John requires $3000 in 6 months to pay off a loan that has no prepayment privileges. If he has the $3000 now, how nuch of it should he save in an account paying 3% compounded monthly so that in 6 months he will have exactly $3000? 47. Return on a Stock George contemplates the purchase of 100 shares of a stock selling for $15 per share. The stock pays no dividends. The history of the stock indicales that it should grow at an annual rate of 15% per yeal. How much should the 100 shares of stock be woru in 5 years? in 2010 is sold in 2013 for $850.000, What is the annual to of return for this investment? monthly, is this a better deal? the bill at that time? 45. Saving for a Car Jerome will be buying a used car for $15.000 in 3 years. How much money should he ask his parents for now so that, if he invests it at 5% compounded continuously. he will have enough to buy the car? on May 1? in ba deos bub
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