Question

A bus holds 45 students. How many buses were taken on a field trip if 13 students traveled by car and a total of 328 students went on the trip? (write an equation, then solve)

Answer 1

The relationship between the number of buses, number of cars and the students is an illustration of a linear equation.

The number of bus on the trip is 7

Let:

$b \to bus$

$c \to car$

$c = 13$ --- students that traveled by car

$Total = 328$ --- the total number of students

So, the equation is:

$45b + c = Total$

Substitute values for c and Total

$45b + 13 = 328$

Collect like terms

$45b = 328 - 13$

$45b = 315$

Divide both sides by 45

$b = 7$

Hence, the number of buses on the trip is 7

Read more about linear equation at:

brainly.com/question/11897796