20,417 Answered Questions for the topic Algebra

Algebra

10/22/21

Solving a word problem using a system of linear equations
A store is having a sale on jelly beans and trail mix. For 2 pds. of jelly beans and 5 pds of trail mix, the total cost is $10. For 8 passengers. of jelly beans and 3pds of trail mix the total cost... more
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Algebra

10/22/21

The greater of two numbers is 8 more than 5 times the smaller. Their sum is 68. Find the numbers.

I really need help on this aspa so please hurry if you can
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10/21/21

Finding output of one step function that models a real world situation: Function notation

Deandre earns 41 dollars per week working part-time at a book store. He makes one dollar more for every book he sells.The amount, A (in dollars), that Deandre earns in a week If he sells “b” books... more
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10/21/21

Solving a percent mixture problem using a system of linear equations

A chemical company makes two brands of antifreeze. The first brand is 55% pure antifreeze.The second brand is 90% antifreeze.In order to obtain 140 gallons of a mixture that contains 70% pure... more
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Algebra

10/21/21

i need help with algebra
Deon needs to read 3 novels each month. Let N be the number of novels Deon needs to read in M months. Write an equation relating N to M. Then use this equation to find the number of novels Deon... more
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10/21/21

𝐴(𝑟)=3200(1+𝑟)4
If $3200 is invested at an interest rate, 𝑟, compounded annually, the amount in the account after 4 years is given by the polynomial function 𝐴(𝑟)=3200(1+𝑟)4. Here, r is used as a decimal, so if r=... more
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10/21/21

l+w+h=96 Packing Algebra Problem

l+w+h=96A) What is the formula for the volume of the box, in terms of l, w, and h? what’s the formula for volume of a box?Let’s simplify this case a little more. Suppose we have a box with a square... more
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10/21/21

 𝑁(𝑡)=11.9𝑡3+20.3𝑡2+22𝑡+757
The opening value of a stock index on the first day of trading from 1994 to 2010, can be modeled using the following polynomial: 𝑁(𝑡)=11.9𝑡3+20.3𝑡2+22𝑡+757,where 𝑡 is time in years since 1994. A)... more
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Algebra

10/21/21

I need help with this problem

Need help solving math problems E=mc2 m=3c=6
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10/21/21

parallel, perpendicular, or neither?
Are the lines given by y = –2x + 3 and 6y – 3x = –18 parallel, perpendicular, or neither?
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10/21/21

Help me with this problem?
Write the equation if is reflected about the x-axis, shifted 1 unit up, shifted 1 unit left and reflected about the y-axis.
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10/21/21

How do I express the answer graphically and algebraically?
A motorcycle stunt rider jumped over the canyon. The path of her motorcycle was given approximately by the function H(x)=−0.005x^2+4.2x+900, where H is measured in feet above the ground and x is... more
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10/20/21

Algebra Word Problem

A company has determined that the demand function for a certain couch is given by p=2700-0.75x, where p is the price per couch, and x is the number of couches sold. The fixed costs associated with... more
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Algebra Math Prealgebra

10/20/21

Solution to inequality?
Is the point (− 5/3 , 5) a solution to the inequality: 3x – 8 ≥ − 2/5𝑦? Show work.
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Algebra Math

10/20/21

parallel, perpendicular, or neither?

Are the lines given by y = –2x + 3 and 6y – 3x = –18 parallel, perpendicular, or neither?
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Algebra

10/20/21

Find the equation of this line.
Sketch the graph of the line containing the point ( 0, −4 ) and has slope 2. Find the equation of this line.Sketch the graph of the horizontal line containing the point (2, −3). Find the equation... more
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10/20/21

What is the equation of the line that passes through the point (-6,6) and has a slope of 1/3?
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Algebra Math Algebra 1

10/20/21

slope 1/5 passes through (-2,-3) in point slope form
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Algebra Algebra 2

10/20/21

find the time that the rocket will hit the ground, to the nearest 100th of second. y=-16x^2+149x+108
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation,
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10/19/21

(x)=√(5x+10), find f′(x) using the definition f′(x)= lim, h→0, {f(x+h)−f(x)} / h . Then, using this, find the tangent line to the graph of y= √(5x+10) at x=3. Enter
For f(x)=√(5x+10), find f′(x) using the definition f′(x)= lim, h→0, {f(x+h)−f(x)} / h . Then, using this, find the tangent line to the graph of y= √(5x+10) at x=3. Enter all values as integers, or... more
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Algebra Algebra 2

10/19/21

find out the maximum amount of profit the company can make, to the nearest dollar. y=-4x^2+183x-1247 y=−4x 2 +183x−1247
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation,
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Algebra

10/19/21

Rachel, Deshaun, and Charlie sent a total of 71 text messages. Rachel sent 9 fewer messages than Deshaun. Charlie sent 2 times as many messages as Deshaun. How many messages did they each send?
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10/19/21

Solving distance rate time problem using a system of linear equations
Two buses leave a station at the same time and travel in opposite directionsOne bus travels 15 km/h faster than the other.If the two buses are 1050 kilometers apart after 6 hours, what is the rate... more
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Algebra Precalculus

10/19/21

How to do x2-x-y=11 and x-y=2 doing substitution or elimination.
To determine the solution of the system of equation.
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Algebra

10/18/21

How much did he invest at each rate

Nico is saving money for his college education. He invests some money at 5% and $2000 less than that amount at 3% the investments produced a total of $156 interest in 1 yr how much did he invest at... more
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