Use elimination method? I keep getting it wrong.

Use elimination method? I keep getting it wrong.

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...

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

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

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

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

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

Elimation method Show work

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

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

2 separate equations. Find x and y.

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

A merchant wants to mix pecans, which sell for $6 per pound, with cashews that sell for $12 per pound to make a 96-pound mixture he can export for $8 per pound. How many pounds of pecans and how many...

Solve by elimination. Indicate if the system is inconsistent or has an infinite number of solutions. Leave your final answers in fractional form, do NOT use decimals. 5x + 2y − 2z = −1, 4x...

solve that system of linear equations using the elimination method

a year long study was done on the gases released by a power plant. A scientist measured the amount of two important gases. He found that here was 64 times as much sulfur dioxide as nitrogen dioxide...

2x + y - z =6 3x -2y +3z =-7 x + y + z =1

A merchant wants to mix pecans, which sell for $3.00 per pound, with cashews that sell for $6.00 per pound to make a 48 pound mixture he can export for $4 per pound. How many pounds of pecans and...

5x-1 / 3 + y+7 / 4 = 11 x+1/2 - x-y/3=3 Find the solution set The 5x-1 is over 3, the y+7 is over 4 x+1 is over 2, x-y is over 3

Solve the system. State whether the system is inconsistent or has infinitely many solutions. If the system has infinitely many solutions, write the solution set with y arbitrary. 4...