Mathematics, 27.11.2020 19:00 kimhayleeshook50

PLEASE HELP‼ Select the correct answer.
The elimination method is ideal for solving this system of equations. By which number must you multiply the second equation to eliminate the y-variable, and what is the solution for this system?

x + 3y = 42
2x − y = 14

A. Multiply the second equation by -3. The solution is x = 12, y = 9.

B. Multiply the second equation by -2. The solution is x = 12, y = 10.

C. Multiply the second equation by 2. The solution is x = 15, y = 9.

D. Multiply the second equation by 3. The solution is x = 12, y = 10.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:20, michaylabucknep7u3y2

Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s

Answers: 1

continue

Mathematics, 21.06.2019 15:40, Reijected

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c

Answers: 2

continue

Mathematics, 21.06.2019 17:20, kristofwr3444

How do you convert 1.27 to a percentage

Answers: 2

continue

Mathematics, 21.06.2019 18:00, puffley

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Answers: 1

continue

You know the right answer?

PLEASE HELP‼ Select the correct answer.
The elimination method is ideal for solving this syst...