Questions on Algebra in Finance answered by real tutors!

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Question 1135795: Simplify: ln(k)-ln(14)
Click here to see answer by ikleyn(52781) About Me 

Question 1135798: Simplify: 18ln(w)
Click here to see answer by ikleyn(52781) About Me 

Question 1135818: A man took out a ​$46,000 construction loan to remodel a house. The loan rate is 8.5​% simple interest per year to be repaid in six months. How much is paid​ back?
Click here to see answer by greenestamps(13200) About Me 

Question 1135817: Arnold Brown has a Visa Card with an annual percentage rate of 19.2%. The unpaid balance for his June billing cycle is $1,376.64. During the billing cycle,​ he purchased a printer cartridge for ​$47.35​, books for ​$298.56 and gasoline for ​$16.05. He made a payment of ​$1,200. If the account applies the unpaid balance​ method, what are the finance charge and the new​ balance?
​(Round to the nearest cent as​ needed.)

Click here to see answer by Theo(13342) About Me 

Question 1135816: Suppose the charge account of Strong's Mailing Service at the local supply store had a​ 1.8% interest rate per month on the average daily balance. Find the average daily balance if​ Strong's had an unpaid balance on March 1 of ​$129.70 a payment of ​$30 posted on March 12​, and a purchase of ​$25.80 posted on March 21. The billing cycle ends on​ March 31
Type an integer or decimal rounded to the nearest hundredth as​ needed.)

Click here to see answer by Theo(13342) About Me 

Question 1135814: John Smith has a credit card that charges 15​% annual interest on the monthly average daily balance for the billing cycle. The current billing cycle has 30 days. For 14 days his balance was ​$2,536.42. For 7 days the balance was $1,536.42 9 days the balance was ​$1,835.63. Find the average daily balance. Find the amount of interest.(Round to the nearest cent as​ needed
Click here to see answer by Theo(13342) About Me 

Question 1135930: Find the inverse:
f(x)= 2 + 1 / -x-3

Click here to see answer by MathLover1(20849) About Me 

Question 1135962:
Click here to see answer by josgarithmetic(39617) About Me 

Question 1135961: Hi, my son needs help with this problem, can you please show me how to do it and answer. Thanks Lorrie.
For each pair of numbers, tell: By what percent of the first number is the second number larger? By what percent of the second number is the first number smaller?
20 and 25

Click here to see answer by josgarithmetic(39617) About Me 
Question 1135961: Hi, my son needs help with this problem, can you please show me how to do it and answer. Thanks Lorrie.
For each pair of numbers, tell: By what percent of the first number is the second number larger? By what percent of the second number is the first number smaller?
20 and 25

Click here to see answer by ikleyn(52781) About Me 

Question 1135960: Suppose that you start working for a company at age 25. You are offered two rather unlikely, but quite enticing, retirement plans from which you are allowed to choose one. [Round all answers to the nearest dollar.]
Retirement plan 1: When you retire, you will receive $16,000 for each year of service.
Retirement plan 2: When you start work, the company deposits $2500 into a savings account that is guaranteed to pay a yearly rate of 18%. When you retire, the account will be closed and the balance given to you.
A. Determine the amount you would receive under plan 1, if you retired at age 55.
$

B. Determine the amount you would receive under plan 1, if you retired at age 65.
$
C. Determine the amount you would receive under plan 2, if you retired at age 55.
$
D. Determine the amount you would receive under plan 2, if you retired at age 65

Click here to see answer by Theo(13342) About Me 

Question 1136052: May I ask you a help for this question -
Find he next term in the following sequence
-3 2 1 0 5 22 57 116
Thank you

Click here to see answer by MathLover1(20849) About Me 

Question 1136048: 1575 people can be seated in 21 buses comfortably. How many buses are required to accommodate 1875 people?
Click here to see answer by josgarithmetic(39617) About Me 

Question 1136061: The number of people writing a test is a prime number less than 200. The ratio of the people who pass to those who fail, could be:
A) 82:83
B) 75:78
C) 76:81
D) 91:78

Click here to see answer by MathLover1(20849) About Me 

Question 1136148: without using a normal curve table, about what proportion of scores on a normal curve are 2 SD above the mean?
would the answer be .0228?
Thank you in advance!!

Click here to see answer by rothauserc(4718) About Me 

Question 1136166: Solve w equals the square root of 1/LC for C.
I squared boe sides getting w2= 1\LC
Then I multiplied by L and got Lw2=1\C this is where I got stuck.

Click here to see answer by Alan3354(69443) About Me 

Question 1136175: What are the sides of a right triangle if they are the same and the hypotenuse is 6? Also your topic selection is not working on my pc, so the topic is Geometry: Pythagorean theorem.
Click here to see answer by ikleyn(52781) About Me 

Question 1136151: can there be a perfect square whose digits consist of exactly 4 ones, 4 twos and 4 zeros in any order?

Click here to see answer by ikleyn(52781) About Me 

Question 1136264: In the year 2000, a company made $4 million in profit. For each consecutive year after that, their profit increased by 15%. How much would the company's profit be in the year 2003, to the nearest tenth of a million dollars?
Click here to see answer by josgarithmetic(39617) About Me 

Question 1136262: In the year 2000, a company made $4.9 million in profit. For each consecutive year after that, their profit increased by 13%. How much would the company's profit be in the year 2003, to the nearest tenth of a million dollars?

Click here to see answer by josgarithmetic(39617) About Me 

Question 1136346: The horizontal distance that a projectile will travel in the air is given by the equation Upper R=v Subscript 0 Superscript 2 Baseline sine left (2theta) Over g,
where v 0 is the initial velocity of the​ projectile, theta is the angle of​ elevation, and g is the acceleration due to gravity​ (9.8 meters per seconds​ squared).
Use the information to answer the following questions.If you can throw a baseball with an initial speed of 33.3 meters per​ second, at what angle should you direct the throw so that the ball travels a distance of 107 meters before striking the​ ground?

Click here to see answer by Alan3354(69443) About Me 
Question 1136346: The horizontal distance that a projectile will travel in the air is given by the equation Upper R=v Subscript 0 Superscript 2 Baseline sine left (2theta) Over g,
where v 0 is the initial velocity of the​ projectile, theta is the angle of​ elevation, and g is the acceleration due to gravity​ (9.8 meters per seconds​ squared).
Use the information to answer the following questions.If you can throw a baseball with an initial speed of 33.3 meters per​ second, at what angle should you direct the throw so that the ball travels a distance of 107 meters before striking the​ ground?

Click here to see answer by ikleyn(52781) About Me 

Question 1136377: Let f(x) = √x−1 and g(x) = x − 7.
(a) Find (f/g)(5) (Show work).
(b) Find the domain of the quotient function f/g. (Explain).

Click here to see answer by Edwin McCravy(20055) About Me 

Question 1136376: Let f(x) = 2x^2 - 8 and g(x) = x - 7.
(a) Find the composite function(fog)(x)and simplify. Show work.
(b) Find( fog)(3) . Show work.

Click here to see answer by MathLover1(20849) About Me 

Question 1136379: Water initially at 200F. is left in a room of temperature 60F to cool.
After t minutes, the temperature T of the water is given by
T(t) = 60 + 140e^ - 0.096t.
Find the temperature of the water 20 minutes after it is left to cool. (Round to the nearest tenth of a
degree.)

Click here to see answer by greenestamps(13200) About Me 

Question 1136401: Compare a and b,if:
150% of A is equal to $120 and 120% of B is equal to $90

Click here to see answer by MathLover1(20849) About Me 

Question 1136400: Compare:
40% of A is equal to $300 and 30% of B is equal to $400

Click here to see answer by josgarithmetic(39617) About Me 

Question 1136399: compare:
$100 decreased by 50% and $150 decreased by 60%

Click here to see answer by josgarithmetic(39617) About Me 

Question 1136389: A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 8 slices of pizza and 7 soft drinks for $34.49. The second group bought 5 slices of pizza and 5 soft drinks for $22.40. How much does one slice of pizza cost?

Click here to see answer by ikleyn(52781) About Me 

Question 1136398: Compare:
$150 increased by 50% and $100 increased by 100%

Click here to see answer by Alan3354(69443) About Me 

Question 1136386: The neighborhood bookstore sells novels for $6.95 per unit. The cost to purchase one book is $3.95. The store has fixed costs per month of $1800. The store estimates that it can sell 1000 books every month. How many books does it need to sell to break even?

Click here to see answer by Boreal(15235) About Me 

Question 1136416: For which natural values of n:
7/(n+2) is an improper fraction?

Click here to see answer by Boreal(15235) About Me 

Question 1136484: I need this ASAP,please answer by tomorrow. Thanks!
Compare A and B, if:
150% of A is equal to $120 and 120% of B is equal to $90

Click here to see answer by josgarithmetic(39617) About Me 

Question 1136483: I need this ASAP, Please answer by tomorrow
Compare A and B ,if:
40% of A is equal to $300 and 30% of B is equal to $400

Click here to see answer by josgarithmetic(39617) About Me 

Question 1136481: Please answer ASAP, I need it by tomorrow.
Compare:
$100 decreased by 50% and $150 decreased by 60%

Click here to see answer by josgarithmetic(39617) About Me 

Question 1136476:
Click here to see answer by josgarithmetic(39617) About Me 

Question 1136489: what is the percent decrease? 0.75 to 0.3? step by step?
Click here to see answer by josgarithmetic(39617) About Me 
Question 1136489: what is the percent decrease? 0.75 to 0.3? step by step?
Click here to see answer by ikleyn(52781) About Me 

Question 1136545: The pear company sells pPhones. The cost to manufacture x pPhones is C(x)=-23x^2+50000x+20461 dollars (this includes overhead costs and production costs for each pPhone). If the company sells x pPhones for the maximum price they can fetch, the revenue function will be R(x)=-26x^2+128000x dollars.
How many pPhones should the pear company produce and sell to maximize profit? (remember that profit = revenue - cost)
Not sure how to solve this question. I could use some guidance on this problem... thank you. This is written by my professor.

Click here to see answer by Theo(13342) About Me 

Question 1136576: A math teacher offers to assign 1 second of homework the first week of school, 2 seconds the second week, 4 seconds the third week & so on....if the amount of homework doubles every week is this something you would agree to for the duration of the 36 weeks school year?
Write a recursive & explicit formula for the situation described, let us defined week 1 as n=0
How many hours would you be spending on homework at the end of 36 weeks (n=35) would you agree to this?

Click here to see answer by ikleyn(52781) About Me 
Question 1136576: A math teacher offers to assign 1 second of homework the first week of school, 2 seconds the second week, 4 seconds the third week & so on....if the amount of homework doubles every week is this something you would agree to for the duration of the 36 weeks school year?
Write a recursive & explicit formula for the situation described, let us defined week 1 as n=0
How many hours would you be spending on homework at the end of 36 weeks (n=35) would you agree to this?

Click here to see answer by josmiceli(19441) About Me 

Question 1136695: Given the equation y=35(0.57)^x
(a) Does this equation represent growth or decay?
(b) What is the rate of growth or decay?
(c) What is the initial value
(d) Evaluate for x=3
(I can tell it is decay, but for the rest I am lost)

Click here to see answer by MathLover1(20849) About Me 

Question 1136694: Does the equation 'y=11(1.11)^t' model exponential growth or exponential decay? Find the growth or decay factor and the percent per time period.
(I know it is exponential growth but I can't seem to find the rest)

Click here to see answer by MathLover1(20849) About Me 

Question 1136729: In a party there were 3boys and 4girls how many diff ways can dey dance?

Click here to see answer by ikleyn(52781) About Me 

Question 1136768: Colby and Trey went shopping at a back-to-school sale where all the t-shirts were the same price, and all of the shorts were the same price. Kima and Tiarra decided to buy hats and socks whose prices were also the same. Colby spent $209 on 9 new shirts and 9 pars of shorts. Trey purchased 6 shirts and 2 pairs of shorts and paid a total of $86.
Write equations that represent the cost of each shirt and pair of shorts for Colby and Trey. Then find out how much each article of clothing cost.

Click here to see answer by ikleyn(52781) About Me 

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