Question

MEDALS!!!!!!!!!!!!!!
Choose the equivalent system of linear equations that will produce the same solution as the one given below.

4x - 2y = 6
2x + y = 5

-4x - 2y = 10
-4y = 4

-4x - 5y = -1
-7y = 5

3x + 2y = 6
7x = 12

4x + 2y = 10
8x = 16

Answer 1

last one

Answer 2

the solution to the first system is x=2, y=1. Substituting these values in the other equations yields the answer

Answer 3

thanks so much!!!! could you help me with some more questions?

Answer 4

I can try

Answer 5

ok great let me copy and paste them real quick

Answer 6

Solve the system of equations.

5x + y = 9
3x + 2y = 4

(-2, 5)

(1, 4)

(2, -1)

(4, -4)

Answer 7

(2,-1)

Answer 8

ok next one :D
Solve the following system of equations:

-2x + y = 1
-4x + y = -1

(3, 1)

(-1, 3)

(-1, -3)

(1, 3)

Answer 9

(1,3)

Answer 10

ok then we have this one :)
Choose the equivalent system of linear equations that will produce the same solution as the one given below.

4x - y = -11
2x + 3y = 5

-4x - 9y = -19
-10y = -30

4x + 3y = 5
2y = -6

7x - 3y = -11
9x = -6

12x - 3y = -33
14x = -28

Answer 11

we could come back to that one later, how about this one?
A gym offers regular memberships for $80 per month and off-peak memberships for $60 per month. Last month, the gym sold a total of 420 memberships for a total of $31,100. How many memberships sold were regular memberships?

125

140

235

295

Answer 12

a and d seem to be correct for the previous one

Answer 13

ok thank you, so its either a or d

Answer 14

and how bout the gym one?

Answer 15

295

Answer 16

ok r u up for a couple more???

Answer 17

hmm give me a sec. need to shake off my brain muscles lol

Answer 18

hahaha ok lol, no need to hurry :)
Solve the system of equations by substitution. What is the solution for x?

2x + y = 1
4x + 2y = -2

x = 0

x = 2

There is no x value as there is no solution.

x can be any value as there is an infinite number of solutions.

Answer 19

3rd option

Answer 20

ok great, now i have two last questions then im out of your hair

Answer 21

Solve the following system of equations:

x - 2y = 14
x + 3y = 9

(1, 12)

(-1, -12)

(12, -1)

(12, 1)

Answer 22

And also this one :
Determine which system below will produce infinitely many solutions.

2x + 5y = 24
2x + 5y = 42

3x - 2y = 15
6x + 5y = 11

4x - 3y = 9
-8x + 6y = -18

5x - 3y = 16
-2x + 3y = -7

Answer 23

(12,-1)

Answer 24

3rd option

Answer 25

omygosh, i just submitted it and i got a 100%!!!!!! :D Yay thank you so much!!!!!!! :DDDDDD

Answer 26

You are the best person ever!!!!!!!!! :D