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....
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10/08/18

#### Use substitution and elimination method.

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

08/29/18

#### 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!

06/11/18

#### 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...
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02/27/18

#### 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

02/22/18

#### 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...
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01/27/18

#### 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?

01/17/18

#### Determine the cost of one desk and one chalkboard

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

11/29/17

#### 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.

11/21/17

#### Hardcover books cost $4 each and paperback books cost $2 each, she spends $26 for 8 books. How many hardcover books did she purchase?

Using elimination method

10/12/17

#### seven hot dogs and four hamburgers cost 13.00; four hot dogs and seven hamburgers cost 14.50. Find the cost of one hot dog and one hamburger.

Use elimination method? I keep getting it wrong.

10/03/17

#### 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...
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09/20/17

#### 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!!

08/28/17

#### 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.

07/07/17

#### 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

07/06/17

#### 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

04/25/17

#### Gaussian elimination

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

04/12/17

#### 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...
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