Use the matrix method to solve the system of equations 2x + 4y = 8 and 6x + 3y = -3. the resulting matrix is: 1 0 -2 0 1 3 1 0 2 0 1 3 0 1 -2 1 0 3

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Read the following two statements. then use the law of syllogism to draw a conclusion. if the tv is too loud, then it will give me a headache. if i have a headache, then i will have to rest.

How do you use the elimination method for this question? explain, because i really want to understand!