2 years ago

Which set of equations has (3, 1)as its solution?

Mathematics

1 answer:

GaryK [48]2 years ago

6 0

Answer:

A and D is representing the solution.

Step-by-step explanation:

We can see that the lines (A and D) are both intersecting at 3, 1. Remember, if the lines are intersecting at a point, that point is the solution of the equation. Therefore, Option B is correct.

Hoped this helped.

$GeniusUser$

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Solve for P. <br><br> S=A+1/2PL

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Answer:

(b) P = 2(S -A) ÷ L

Step-by-step explanation:

Undo what is done to P.

$S=A+\dfrac{1}{2}PL\qquad\text{given}\\\\S-A = \dfrac{1}{2}PL\qquad\text{subtract $A$}\\\\\dfrac{2}{L}(S-A)=P \qquad\text{multiply by $\dfrac{2}{L}$}\\\\\boxed{P=\dfrac{2(S-A)}{L}}$