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Find the ordered pair (s, t) that satisfies the system: 2s/3t = 1 and 3t = 2s.

a. (3, 2)
b. (-2, -3)
c. (1, 3)
d. (0, 0)

1 Answer

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Final answer:

The correct ordered pair that satisfies both systems of equations 2s/3t = 1 and 3t = 2s is (3, 2), which is option (a). The solution is found by expressing s in terms of t and verifying which pair satisfies both equations.

Step-by-step explanation:

To solve the given system of equations 2s/3t = 1 and 3t = 2s, we can first solve for one variable in terms of the other using the second equation and then substitute into the first. From the second equation, we can express s as s = (3/2)t. Substituting this into the first equation gives 2((3/2)t)/(3t) = 1, which simplifies to 1 = 1. This shows that the second equation depends on the first, and we can use either equation to find the relationship between s and t. Since 3t = 2s, we see that (s, t) = (3, 2) satisfies the equation, making it the correct ordered pair.

Checking the answer choices:

  • (a) (3, 2): 2(3)/3(2) = 1 and 3(2) = 2(3) are both true.
  • (b) (-2, -3): 2(-2)/3(-3) != 1 and 3(-3) != 2(-2) do not satisfy both equations.
  • (c) (1, 3): 2(1)/3(3) != 1 and 3(3) != 2(1) do not satisfy both equations.
  • (d) (0, 0): Cannot compute 2s/3t as t = 0 leads to division by zero, and 3t != 2s when both are zero.

Therefore, the correct final answer is option (a) which is the ordered pair (3, 2).

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