subject
Mathematics, 23.11.2020 02:00 gonzalesalexiaouv1bg

The following system of equations is given below: \large -5x+y=-18

\large -10x-5y=20

Which of the following steps is not suitable to solve this system by elimination?

a. Multiply the first equation by 2 and then subtract the equations from each other.

b. Multiply the first equation by -5 and then add the equations together.

Selected:c. Multiply the first equation by 5 and then add the equations together. This answer is incorrect.

d. Multiply the first equation by -2 and then add the equations together.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 14:40
Asequence is defined recursively by the formula  f(n  +  1)  =  f(n)  +  3 . the first term of the sequence is  –4. what is the next term in the sequence? –7–117
Answers: 1
question
Mathematics, 21.06.2019 20:30
Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?
Answers: 1
question
Mathematics, 21.06.2019 23:00
Could someone me with this question i’ve been stuck on it for 20 minutes
Answers: 1
question
Mathematics, 22.06.2019 00:00
Yvaries directly as x. y =90 when x=6. find y when x=13
Answers: 1
You know the right answer?
The following system of equations is given below: \large -5x+y=-18

\large -10x-5y=20
Questions
question
Biology, 21.04.2020 00:12
question
History, 21.04.2020 00:12
Questions on the website: 13722361