Consider the system of equations: Equation 1: -2x+3y=9
Equation 2: -80 -7y=10
Before adding the equations together, which would not result in the elimination of the variables in this system?

Multiply the first equation by 8 and the second equation by 2.

Multiply the first equation by 7 and the second equation by 3.

Multiply the first equation by 4 and the second equation by -1.

Multiply the first equation by 14 and the second equation by 6.

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Runner ran 1 4/5 miles on monday and 6 3/10 on tuesday. how many times her monday’s distance was her tuesdays distance

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.