Question

There are 54 people playing tennis at the regional event at the same time. Some are playing doubles, and some are playing singles. There are 18 matches in progress. A singles match requires 2 players, and a doubles match requires 4 players. This can be modeled with this system of equations. 2s + 4d = 54 s + d = 18 Which ordered pair is the most reasonable solution to this system of equations?

(9, -9)


(-9, -9)


(-9, 9)


(9, 9)

Answer 1

The correct answer for this question is this one: "(-9, -9)"
This can be modeled with this system of equations. 2s + 4d = 54 s + d = 18 The ordered pair that is the most reasonable solution to this system of equations is (-9, -9)

2s + 4d = 54s + d = 18
3d = 52d
d = 18.

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