The senior class at Capital High School and Nitro High School planned separate trips to Yellowstone National Park. The senior class at Capital rented and filled 14 fans and 9 buses with 354 students. Nitro High School rented and filled 7 vans and 4 buses with 162 students. Every van had the same number of students in it as did the buses.

How many people could a bus carry?

Please don’t put random answer!!!!

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msm555

Answer:

A Bus could carry 30 people.

Step-by-step explanation:

Let's denote the number of students in a van as [tex]\sf v[/tex] and the number of students in a bus as [tex]\sf b[/tex].

From the information given:

For Capital High School:

  • Number of vans: 14
  • Number of buses: 9
  • Total number of students: 354

The total number of students in vans and buses can be expressed as an equation:

[tex]\sf 14v + 9b = 354[/tex]

For Nitro High School:

  • Number of vans: 7
  • Number of buses: 4
  • Total number of students: 162

The total number of students in vans and buses for Nitro High School can be expressed as:

[tex]\sf 7v + 4b = 162[/tex]

Now, we have a system of two equations with two unknowns:

[tex]\sf \begin{cases} 14v + 9b = 354 \\ 7v + 4b = 162 \end{cases} [/tex]

To solve for [tex]\sf b[/tex] (the number of students a bus can carry), we can use the system of equations.

One way to do this is by multiplying the second equation by 2 to make the coefficients of [tex]\sf v[/tex] in both equations match:

[tex]\sf \begin{cases} 14v + 9b = 354 \\ 14v + 8b = 324 \end{cases} [/tex]

Now, subtract the second equation from the first:

[tex]\sf \begin{aligned} (14v + 9b) - (14v + 8b) &= 354 - 324 \\ 14v +9b -14v -8b & = 30 \\ b & = 30 \end{aligned} [/tex]

So, a bus could carry 30 people.