How do i go about solving the following system of equations by elimination?

4m-3n=27 and 8m-6n=18

(This was meant to be my previous question, but i accidentally put in the one I already solved for)

The output is one-fifth of the input

Sharon has a piece of cloth of area 170 cm 2. can she make a square handkerchief with length of each side as 12.5 cm?

Is - 9 greater than 8

In one sentence, how do we know if a number is a solution?

Sarah is charged a 1.25% fee every time she cashes her paycheck at th month, how much would she save in a year if she cashed her checks at o $24,675 o $2,467.50 o $246.75 o $20.56

Scores on a test have a mean of 70 and q3 is 83. the scores have a distribution that is approximately normal. find p90. (you will need to first find the standard deviation.) a. 94.84 b. 85.08 c. 85.31 d. 83.7

Ella buys a book and pen for $14. The cost of the book is two dollars more than twice the cost of the pen. write a system of linear equations for the situation. Then find the cost of each item.

The drama club will be auditioning for the lead role for its next production. Sue, Joanne, and Ava are waiting to audition for the part. They are to be called onto the stage to audition one at a time at random.

Which is the better buy if the cost 6$ for 2 for refills or would the 12$ for 3 refills be better

When you solve a problem involving money, what can a negative answer represent?