Which system of equations has the same soultion as the system below? 2x+2y=-4 4x+y=13

The solution is ;  x = 5  and y= -7

Step-by-step explanation:

The two inequality equations are given as;

2x + 2y = -4 {i}

4x  +  y = 13 {ii}

Making the x terms equal by multiply equation {i} by 4 and {ii} by 2 to get

{2x + 2y = -4 } 4

{4x  +  y = 13 } 2

8x + 8y = -16

8x  + 2y =  26

        6y = -42

         y= -42/6

        y= - 7

Use y= -7 in the equation  4x + y = 13

4 x - 7 = 13

4x = 13 + 7

4x = 20

x= 20/4

x= 5

The solution is ;  x = 5  and y= -7

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

there are infinitely many solutions.