Question

Please I need help on this ! If anyone can that would be great!! <3

Answer 1

Answer:

Step-by-step explanation:

(A)The given equations are:

$x-y=3$ and $x+y=3$

Taking the ordered pair (3,0),

$3-0=3$ and $3+0=3$ which is satisfied. Thus, option A (3,0) is correct.

(B) The two equations are:

$x-y=3$ and $x+y=3$

Adding both the equations, we get

$2x=6$

$x=3$

Therefore, substituting the value of x in any of the two given equations,

$3-y=3$

$y=6$

Hence, x=3 and y=6

(C) Let "b" represents Becky's score and "C" be Cathy's score.

Then, According to the question, we get

$b=c-5$ and $b+c=185$

Thus, Option B is correct.

(D) The given equations are:

$x+y=6$ and $x=y+5$

Now, substituting the value of x=y+5 in the equation$x+y=6$, we get

$(y+5)+y=6$

Thus, option C  is correct.