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12
12) New York City is a popular field trip destination. This year the senior class at High School A and
the senior class at High School B both planned trips there. The senior class at High School A
rented and filled 4 vans and 7 buses with 448 students. High School B rented and filled 9 vans
and 14 buses with 910 students. Every van had the same number of students in it as did the
buses. Find the number of students in each van.

Respuesta :

huong01001000

Answer:

the number of students in each van : 14

Step-by-step explanation:

a = how many students fit into a van

b = how many students fit into a bus

School A: 4a+7b=448 (1)

School B: 9a+14b=910 (2)

(1) => b = (448-4a)/7

subs to (2) => 9a+ 2(448-4a) = 910

=> a = 14

=> b =56

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