subject
Mathematics, 20.07.2019 22:00 Homepage10

Michiko claims that to solve the system of linear equations 15x+8y=1 and 21x+4y=-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? a michiko is right for this system of linear equations, but her method will not work for other systems of linear equations. b michiko is right for this system of linear equations, and her method will also work for other systems of linear equations. c michiko is wrong because her method will give the opposite of the correct value for x for any system of linear equations. d michiko is wrong because her method will give the opposite of the correct value for y for any system of linear equations.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 13:10
Plz which expression is equivalent to the expression below?
Answers: 1
question
Mathematics, 21.06.2019 22:00
Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.
Answers: 2
question
Mathematics, 21.06.2019 23:00
Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet
Answers: 1
question
Mathematics, 22.06.2019 02:30
In 1995 america online had about 3000000 users over the next decade users are expected to increase from a few million to the tens of millions suppose the number of users increased by 150% by the year 2000 how many users will there be in the year 2000
Answers: 3
You know the right answer?
Michiko claims that to solve the system of linear equations 15x+8y=1 and 21x+4y=-13, instead of mult...
Questions