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Robert gives roping lessons at the Sundown Corral. A 3-hour lesson costs $120.00. The cost of a lesson is proportional to the duration, in hours, of the lesson. What is the constant of proportionality in terms of dollars per hour?

Respuesta :

Answer:$40/hour

Step-by-step explanation:

3 hour session costs $120

Therefore, an hour session would cost $120/3 = $40

The constant of proportionality is 40 dollars per hour.

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Answer:

The correct answer is $30.00

Step-by-step explanation:

The total cost of the lesson can be modeled by the function y = kx, where x is the number of hours, y is the total cost, and k is the price per hour. Substitute x = 3 hours and y = $90.00 into y = kx, and solve for k.

$90.00=(k)(3hours)

$90.00/3hours=k

$3.00 per hour=k

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