Aclass used vans and buses to go on a field trip. they used 15 vehicles to go on a trip. each van holds 9 students and each bus holds 30 students. if 282 students went on the trip then how many of each type of vehicle did the class use?

7 buses and 8 vans

Step-by-step explanation:

We know that 292 students went on a trip. Each van holds 9 students and each bus holds 30 students and total 15 vehicles were used.

Assuming the vans as and buses as , we can make the following equations with the help of the given data:

--- (1)

--- (2)

Using the substitution method:

Putting this value of in equation 2:

so

Therefore, 7 buses and 8 vans were used on the trip by the class.

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6