subject
Mathematics, 05.01.2021 14:00 revlonknox6

Select the correct answer. A system of equations and its solution are given below.

System A

To get system B below, the second equation in system A was replaced by the sum of that equation and the first equation in system A multiplied by -2.

System B

A.
The second equation in system B is 7x = 30. The solution to system B will be the same as the solution to system A.
B.
The second equation in system B is -7x = 14. The solution to system B will be the same as the solution to system A.
C.
The second equation in system B is -7x = 14. The solution to system B will not be the same as the solution to system A.
D.
The second equation in system B is 7x = 30. The solution to system B will not be the same as the solution to system A.

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:20, trinityrae4657
Beth took out a $20,000 loan for college she is borrowing money from two banks. bank a charges an interest rate of 8.5% bank b charges and interest rate of 10.5% after one year alice owes $1860 in interest how much money did she borrow from bank a
Answers: 3
image
Mathematics, 21.06.2019 23:30, Coolcatfurzy
Fill in the table with whole numbers to make 430 in five different ways
Answers: 1
image
Mathematics, 22.06.2019 00:00, kiki4832
Yvaries directly as x. y =90 when x=6. find y when x=13
Answers: 1
image
Mathematics, 22.06.2019 02:00, 791197
Will make ! for correct answer the dot plot below shows the number of toys 21 shops sold in an hour. is the median or the mean a better center for this data and why? a. median; because the data is not symmetric and there are outliersb. median; because the data is symmetric and there are no outliersc. mean; because the data is symmetric and there are no outliersd. mean; because the data is skewed and there are outliers
Answers: 2
You know the right answer?
Select the correct answer. A system of equations and its solution are given below.

Syst...

Questions in other subjects: