Question

Answer key to the senior class at high school a and high school b planned seperate trips to yellowstone national park. the senior class at high school a rented and filled 9 vans and 12 buses with 630 students. high school b rented and filled 1 van and 6 buses with 252 students. each van and each bus carried the same number of students. find the number of students in each van and in each bus.

Answer 1

x=number of students

9x+12x=630
21x=630
x=30

so for high school, a, the 9 vans carried (9*30) 270 students while the 12 buses carried (12*30)=360 students. check:270+360=630

so for high school,b.
1x+6x=252
7x=252
x=36

so the 1 van carries 36 students and the 6 buses carries (6*36) 216 students. check: 216+36=252