3,395 Answered Questions for the topic College Algebra

02/07/15

Dimensions of a rug

Zachary Daniels wants to buy a rug for a room that is 12 ft wide and 15 ft lon. He wants to leave a uniform strip of floor around the ru. He can afford to buy a 18ft^2 of carpetin. What dimensions... more
College Algebra Algebra 2

02/05/15

Find the principle needed now to get the given amount; that is find the present value

to get $90 after 1 1/2 years at 4% compounded continuously.  What is the present value of $90?
College Algebra Algebra 2 Economics

02/05/15

Find the amount that results from the given investment.

$10 invested at 11% compounded continously after a period of 2 years.   What will the investment results be in 2 years?
College Algebra

02/04/15

How many years?

the population of a southern city follows exponentia law. If the population doubled in size over 26 months and the current population is 30,000 what will the population be 4 years from now?
College Algebra

02/04/15

How many grams?

the half life of radium is 1690 years. If 50 grams are present now, how much will be present in 270 years?
College Algebra

02/04/15

world problem

A jeweler offers to sell you a ring he claims is pure palladium which has a denstity of 12.02/mL . Before buying the you want to determine weather it is really pure palladium. Explan how would... more
College Algebra

02/04/15

world problem

Hexane has a density of 0.659g/mL. How many milliliters(mL) would you need to pour in order to get 49.5 g of hexane.
College Algebra

02/03/15

Solve 1/R=1/R1+R2 for R. Your result should not contain any complex fractions.

The R's are suppose to have little numbers next to them R1, same with R2
College Algebra

02/02/15

box with open top, rectangular piece of cardboard, width of 26in and length of 50in by cutting corners (x) from side length.

need a polynomial representing the volume of the box. height is unknown

02/02/15

f(x)=5(x-2)^2+9 What is the vertex? Is it maximum or minimum? What is the minimum value of f(x)?

f(x)=5(x-2)^2+9 What is the vertex? Is it maximum or minimum? What is the minimum value of f(x)?
College Algebra Math Help

02/02/15

the sum of two numbers is 21. the first number is twice the second number. What are the numbers

thats all there is 

02/02/15

Word problem

A nurse mixes 60 cc of a 50% saline solution with a 10% saline solution to produce a 25% saline solution. How much of the 10% solution should he use?
College Algebra

02/01/15

world problem

 A circus juggler throws a ball upward with an initial velocity of 15.8 m/s. How long does he have before it comes back down and he has to catch it? Assume he catches it at the same height from... more

Linear function

The manufacturing process requires that oil refineries manufacture at least 2 gallons of gasoline for each gallon of fuel oil. To meet the demand for fuel oil, at least 3 million gallons per day... more

Linear function

A local theater sells tickets for childre, adults, and senior citizen. Adult tickets are $8.00, children's tickets are $4.00, and senior tickets are $6.00. One day the theater sells 700 tickets and... more

01/31/15

Word problem

laura borrowed a total of $20,000 from two different banks to start a business. One bank charged the equivalent of 4% simple interest, and the other charged 5.5% interest. If the total interest... more
College Algebra

01/29/15

what is the mass in grams of 125mL of castor oil which has a density of 0.962g/mL

what is the mass in grams of 125mL of castor oil which has a density of 0.962g/mL
College Algebra

01/29/15

convert 1.55x10^2 km to m

convert 1.55x10^2 km to m

01/28/15

Linear function

Your friend has a check for $1000 after a 55 hour work week. However, every hour past 40 is considered overtime and is paid 1.5 times the usual wage. How much is your friends usual wage?
College Algebra

01/27/15

How do completely factor the expression?

-9x^2+6x-1
College Algebra

01/23/15

Word problem help

A precinct reported than 317 people had voted in an election. The number of republican voters was 7 more than two-thirds the number of democrats. How many republicans and how many democrats voted... more
College Algebra

01/20/15

Investing question

Don James wants to invest $55,000 to earn $5250 per year. He can invest in B-rated bonds paying 12% per year or in a Certificate of Deposit (CD) paying 7% per year. How much money should be... more
College Algebra

01/20/15

world problem

Average adult male needs 58 g of proten per day. A can of begetrian refreid beans contains 6.0 of protien per serveing. Each serving is 128 g of beans. If his only dietary soruce of protein was... more
College Algebra

01/18/15

need to give an equation of perimeter for length only and area of 3200 for length only

Have an area which is 3200 The length is a 8 feet longer than the width I have these equations that were given me: P=2L+2W, A=L*W, P=L+2W I know that W=L-8     Not sure what equation I need... more
College Algebra

01/13/15

In some country the budget for defense exceeded the budget for education by $687.4 billion.

If x represents the budget for education, in billions of dollars, how can the budget for defense be represented?

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