Answer step by step 1.avas school took a field trip. a total of 32 vehicles were needed for the trip. some students took the bus, and some students car-pooled. there are 27 people on each bus and 3 people on each car. 408 people altogether attended the trip. how many buses and cars were needed for the trip?

Consider, please, this solution/explanation:
1. suppose, that number of cars is 'x', numbers of buses is 'y'.
2. according to the condition 'a total of 32', it means that x+y=32. This is the 1st equation.
3. according to the condition in one car are 3x persons, in one bus are 27y persons, and totaly 3x+27y=408 people. This is the 2d equation.
4. if to solve the system of two equations:


13 - b., 19 - c.