4,335 Answered Questions for the topic College Algebra

College Algebra

12/03/19

Inverse proportional

The percentage of people who say they trust the government in Washington “always or most of the time” is inversely proportional to x^0.429 where x is the number of years after 1960. This percentage... more
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College Algebra

12/03/19

How many ounces of a 14​% alcohol solution must be mixed with 2 ounces of a 20​% alcohol solution to make a 16​% alcohol​ solution?
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College Algebra Math Homework College

12/03/19

Working together, two pumps can drain a certain pool in 6 hours. If it takes the older pump 15 hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own?

College Math Help. Dealing with time. Its a homework problem I'm struggling with.
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College Algebra Algebra

12/03/19

Calorie counting with pie

Using the calorie count of one-eighth of a 9-in. pie, we find that the number of calories in a piece of pecan pie is 221 less than twice the number of calories in a piece of lemon meringue pie. If... more
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College Algebra

12/02/19

College algebra
Find the midpoint of the line segment with endpoints P(8,3) and Q(10,5).
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College Algebra

12/02/19

Please Help! I don't know how to solve this question and I need to learn by today; I have an exam tomorrow :(
A Pizzeria sells pizza according to size: small pizzas cost $10, medium pizzas cost $15, and large pizzas cost $40. They usually sell as many small pizzas as medium and large pizzas combined. The... more
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College Algebra Chemistry

12/02/19

The half-life of strontium-90 is 28 years. How long will it take a 60-mg sample to decay to a mass of 26.4 mg?
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College Algebra

12/02/19

college Algebra
Give the function g (x) = 5-x^2, simplify g(x + h) -g(x), h=0 h
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College Algebra

12/02/19

How long will it take for an investment to triple in value if it earns 9.25% compounded continuously

Solve the problem round to 3 decimal places
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College Algebra

12/02/19

Finding the cost for each pound of jelly beans and each pound of almonds

A store is having a sale on jelly beans and almonds. For 2 lbs of jelly beans and 6 lbs of almonds the total cost is $24. For 5 lbs of jelly beans and 3 lbs of almonds the total cost is $21. Find... more
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12/01/19

How to solve: A movie theater has a seating capacity of 355. The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults.
A movie theater has a seating capacity of 355. The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults. There are half as many adults as there are children. If the total... more
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College Algebra Math Algebra 2 Algebra

12/01/19

Exponential Decay
A patient is given anesthesia for a medical procedure. An equation that can model the concentration of anesthesia in the bloodstream after t hours is: f(t)=Ae-ktAssume that after 1 hour the... more
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College Algebra

12/01/19

College Algebra
The rectangular pasture shown below is to be fenced in along a riverbank. If 288 feet of fencing is to enclose an area of 9,856 square feet, find the dimensions of the pasture. (Let the length... more
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College Algebra

11/30/19

Making an equation from a word problem
When buying groceries at the store for this dinner, you can spend no more than $100. Some costs are fixed, like spices and piecrusts. That total comes to $65. The turkey, however, is priced per... more
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College Algebra

11/30/19

Linear equation word problem
Before we can make the mashed potatoes, we need to boil some water. The water starts out at room temperature, 70° F, and increases by 50° F per minute. Create a linear equation using time t (in... more
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College Algebra

11/30/19

1) What is the concentration of the drug in the bloodstream at t = 8 hours?
When a certain prescription drug is taken orally by an adult, the amount of the drug (in mg/L) in the bloodstream at t hours is given by the function y = f(t) shown in the graph.
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College Algebra Algebra

11/29/19

Calorie count of a one-eighth of pie

Using the calorie count of one-eighth of a 9-in. pie, we find that the number of calories in a piece of pecan pie is 221 less than twice the number of calories in a piece of lemon meringue pie. If... more
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College Algebra Algebra 2

11/29/19

The total cost to rent 8 chairs and 4 tables is $45. The total cost to rent 3 chairs and 2 tables is $21. What is the cost to rent each chair and each table?

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College Algebra

11/29/19

College Algebra Question
For f(x)equals=7x−5 and ​g(x)equals=5x−7​, check whether (f◦​g)(x) is equivalent to (g◦​f)(x).​(f◦​g)(x)= ​(Simplify your​ answer.)
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College Algebra

11/27/19

If 250 mg of a radioactive element decays to 210 mg in 48 hours, find the half-life of the element. (Round your answer to the nearest whole number.)
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College Algebra Algebra 2

11/27/19

PLEASE HELP ALGEBRA
Trey borrowed a total of $3000 from two student loans. One loan charged 3% simple interest and the other charged 2.5% simple interest, both payable after graduation. If the interest he owed... more
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College Algebra

11/25/19

College algerbra

A certain radioactive isotope has a​ half-life of approximately 1250years. How many years to the nearest year would be required for a given amount of this isotope to decay to 25​% of that​ amount?
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College Algebra

11/24/19

find y if ln y=0.926
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College Algebra

11/24/19

How to find the number of tickets for sale at $24 and $40?
A 6000-seat theater has tickets for sale at ​$24 and ​$40. How many tickets should be sold at each price for a sellout performance to generate a total revenue of $179,200​?
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College Algebra Algebra 2

11/24/19

The height of a triangle is 4 feet greater than the base. The area of the triangle is 336 square feet. Find the length of the base and the height of the triangle.
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