1,456 Answered Questions for the topic Linear Equations

05/07/21

#### Consider the system of linear equations

a1x + b1y = c1a2x + b2y = c2where a1, b1, c1, a2, b2, and c2 represent real numbers. What must be true about the lines represented by the equations when the following is true?A: The lines must...
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Linear Equations Math

05/06/21

#### How far from the station will they meet?

A train leaves a station and travels north at a speed of 50mph. Five hours later, a second train leaves on a parallel track and travels north at 175mph. How far from the station will they meet

Linear Equations Math

05/05/21

#### How much was invested at each rate?

$5900 is invested, part of it at 12% and part of it at 7%. For a certain year, the total yield is $568. How much is invested at each rate?

05/04/21

#### Linear Equation Word Problem (below)

The sum of Eric’s and Bob’s weights is 9 times the difference of their weights. The positive difference of their weights is also 240 pounds less than the sum. If Eric weighs less than Bob, find...
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05/03/21

#### Linear Equation Word Problem (below)

A plane traveled 1496 miles to Baltimore and back. The trip there was with the wind. It took 11 hours. The trip back was into the wind. The trip back took 17 hours. Find the speed of the plane in...
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04/30/21

#### Find the new quadratic form?

Classify the quadratic form below. Then make a change of variable, x=Py, that transforms the quadratic form into one with no cross-product terms. Write the new quadratic...
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04/30/21

#### Find the new quadratic form

Classify the quadratic form below. Then make a change of variable, x=Py, that transforms the quadratic form into one with no cross-product term. Write the new quadratic form.2x21 + 8x1x2+2x22What...
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04/30/21

#### Find the complete solution of the system of linear equations.

Find the complete solution of the system of linear equations. Express your answer in terms of t where x=x(t), y=y(t), and z=t. { x + 4y - 2z = -3 2x - y + 5z = 12 8x + 5y + 11z = 30 }(x, y, z) =...
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Linear Equations Linear Algebra

04/23/21

#### how do I solve this? 2 (x+3) > 6(x-1)

Linear Equations Algebra

04/14/21

#### Write the point-slope form of an equation of the line that is perpendicular to y=-2x-5 and has the same y-intercept as 2x+y=5.

So, I can't figure out what the point-slope form is but I can find the slope-intercept form which is y=1/2x+5 and I hope that's correct. I only remember how to find the point-slope form if I have a...
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Linear Equations Math

04/09/21

#### How would I go about solving this problem?

Sierra invested her savings of $4800, part at 9% and the rest at 10% (both simple interest). At the end of the year the interest from the 9% investment was $43 less than the interest from the 10%...
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Linear Equations

04/06/21

#### For the polynomial below , -1 is a zero. G(x)=x^3+7x^2+24x+18. Express g(x) as a product of linear factors

Linear Equations

03/29/21

#### How to add greater than in Excel Solver

I have a linear constraints as X>Y, and I need to add it into Excel Solver. But the option in add-in just have >=, <= or =. So what should I do?

#### Algebra (Linear Algebra)

A tourist has a collection of 33 coins consisting of Belgian francs ( 2 cents each), British shillings (14 cents), and German marks (25 cents each). The total value of the collection is $6.33. He...
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Linear Equations Math

03/27/21

#### A line's slope is –1/5 ,and its y -intercept is –7

Write a linear equation from a slope and y-intercept

Linear Equations Linear Algebra

03/27/21

#### Algebra (Linear Algebra)

The sum of the digits of a three-place number is 14. If the digits are reversed and the resulting number is added to the original, the sum is 1171. If the resulting number is subtracted from the...
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#### Please help me as soon as possible please with algebra homework

Question 1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could...
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#### Please help me with this algebra homework question as soon as possible please

Question 1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could...
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#### Hello, I need assistance with my algebra homework very soon please

Question 1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could...
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#### application of linear algebra

Question # 2: Consider an open economy with three industries: coal-mining operation, electricity-generating plant and an auto-manufacturing plant. To produce $1 of coal, the mining...
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#### Hi um so these questions have stumped me for days please help me with my math homework

1.) Which function should be used to when evaluating the function at x = 3?A.)B.)2.) A computer training institute has 625 students paying $400 as the course fee. Their research shows that for...
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