You are given the system of equations to solve by the elimination method, which is an incorrect step that will not produce a system with the same solution? x + 2y = 7 2x − 5y = 5 a) add 5 times the first equation and 2 times the second equation b) multiply the first equation by 2 and subtract the second equation c) multiply the first equation by −2 and add the second equation d) multiply x by 2 in the first equation and subtract the second equation

D

Step-by-step explanation:

If you're doing to multiply a value by a number, ALL terms in the equation must be multiplied by the same value otherwise you do not have a correct equation.

D) multiply x by 2 in the first equation and subtract the second equation

Step-by-step explanation:

When you are trying to solve a system of equations you have to eliminate one of the terms so you´ll end up with only a one term equation that is solvave, in this case if you multiply X by 2 you can actually eliminate X from that equation, but by not multiplying all the terms on the equation you end up with a whole different equation and the result wont be accurate.

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

4.5%

step-by-step explanation: