85 Answered Questions for the topic Elimination Method

Really need help with this word problem

The phone company charges you a different rate for the first minute of a call then each additional minute. You see on your bill that a 12 minute call costs $2.03 and an 18 minute call costs $2.81.... more

Use substitution and elimination method.

Substitution: y=x2-6x+9                      y+x=5     Elimination: y=x2-11x-36                   y=-12x+36

I’m not sure if I’m supposed to distribute

3(x+1)- 4(y-1) =13 5(x+2)+ 2(y+3)= 0

Solve with elimination please

a/6+ b/4 = 5/2 2a/3- b/2 = -2

Solve with elimination please

1/5(x + 2y) = -2  x/4 - 3y/2 = 15/2

Solve System Of Equations

I have a question on how to simplify this system of equations. If a free variable is needed please use the parameter t.   4x-y+z=6 2y+6z=36 x+z=6   Thank you!

Maricella has a bag containing 35 nickles and quarters. The total value of these coins is less than $2.50. What is the maximum number of quarters that meets the

I'm doing a math project and can't figure out the two equations needed! Maricella has a bag containing 35 nickles and quarters. The total value of these coins is less than $2.50. What is the... more

Solve the system of equation using elimination

3x=2-7y and -4x=30-7y

The sum of two numbers is 36. Their difference is 24. Calculate the numbers

Just a little confused on this math question need help on how to do it with steps explaining 

pleaase help

Question PartPointsSubmissions UsedDuring one month, a homeowner used 200 units of electricity and 140 units of gas for a total cost of $86.60. The next month, 210 units of electricity and 200... more

Elimination problem

A winter clothing store had a sale and Cory bought two pairs of gloves and four hats for $43. Mark bought two pairs of gloves and two hats for $30. How much did each pair of gloves and each hat cost?

Determine the cost of one desk and one chalkboard

35 desks and 3 chalkboards cost $2082 40 desks and 2 chalkboards cost $2238

The perimeter of a rectangle is 30 meters. The length of the rectangles is 3 meters more than twice the width. Find the dimensions of the rectangle.

This is an elimination word problem that involves finding the dimensions of a shape.

How to solve and what's the answer to the problem?

Colombian  coffee beans cost $5.50 per pound, while Peruvian coffee beans cost $4.25 per pound. We want to mix the beans together so as to produce a 40 pound bag, costing $4.60 per pound. How many... more

Systems Question- Elimination

Here are the equations: 1/2x+1/3y=-4 1/5x+1/5y=-2   Can someone solve this using the elimination method?   Ty!!

Solve by elimination: 3x-2y=3 and -6x+4y=-6

Whenever I try to solve this I get 0=0. I don't know what that means or if that's correct. Please help.

Solving a System of Equations Using Elimination

4x+3y=15 8x+9y=15

SOLVING A SYSTEM OF EQUATIONS BY S/E

Substitution Form:2x-3y=2 x+y=-1x+y=-1 Elimination Form: 2x/3 - 4y/5 = 1 and 3x-y=-7

Substitution/Elimination Form

Substitution Form: 2x-3y=2 x+y=-1 x+y=-1   Elimination From:  2x/3 - 4y/5 = 1 and 3x-y=-7

Gaussian elimination

solve using gaussian elimination with matrices  x+y-3z=4 4x+5y+z=1 2x+3y+7z=-7

Gaussian elimination

solve using gaussian elimination x+3y+4z=1 3x+4y+5z=3 x+8y+11z=2

3x+7y=-9. 2x+5y=-7

2 separate equations. Find x and y.

How do I work this problem?

Consider the following system of equations:2x − 3y = 2,4x + 2y = −1−5x − 6y = dFor what value of d does the above system have a solution? For this value of d, graph all three equations... more
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