For brainlist Johnny and Maddox joined different gyms. The cost of joining the gym was $30 and then he must pay $15 per month. Johnny joined Gym A and his membership can be modeled by the following equation where x represents the number of months in which he has been a member and f(x) equals the total cost of he has paid for his membership. f (x) = 15x + 30 - Maddox joined Gym B and his membership is modeled in the following table. Part A: Determine who paid a higher joining fee for the gym membership. Explain. Part B: Which person pays a higher monthly rate? Explain how you know.

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Johnny and Maddox joined different gyms. The cost of joining the gym was $30 and th

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Ответ:

moonlightparis9015

26.11.2021

Mathematics

93 students

Step-by-step explanation:

We need to calculate the 30% of 310 students.

We can calculate with a direct rule of 3. If the 100% is 310 students, how many students are the 30%?

$100 -\!\!\!-\!\!\!- \text{310 students}\\ 30 -\!\!\!-\!\!\!- \text{x students}$

We use the formula of the direct rule of 3:

$x = \frac {30 * 310}{100} \\ \\ x = \frac {9,300}{100}\\$

x = 93

93 students play an instrument at Southside Middle School.

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