subject
Mathematics, 26.06.2020 15:01 martinez6221

Michiko claims that to solve the system of linear equations 15 x + 8 y = 1 and 21 x + 4 y = negative 13, instead of multiplying the second equation by –2 and then adding the equations, she could multiply the second equation by 2 and then subtract the second equation from the first equation. Which statement is correct?\

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 14:00
Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1
Answers: 2
question
Mathematics, 21.06.2019 15:00
The image of the point (-6, -2)under a translation is (−7,0). find the coordinates of the image of the point (7,0) under the same translation.
Answers: 1
question
Mathematics, 21.06.2019 17:00
Can someone pls ! pls answer all. no explanation needed..
Answers: 1
question
Mathematics, 21.06.2019 22:00
Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2
Answers: 1
You know the right answer?
Michiko claims that to solve the system of linear equations 15 x + 8 y = 1 and 21 x + 4 y = negative...
Questions
Questions on the website: 13722363