331 students went on a field trip. Six buses were filled and 7 students traveled in cars.

Part A
Which equation can be used to determine how many students were in each bus, x?

A.) 7x + 6 = 331
B.) 6x + 7 = 331
C.) 6x + 7x = 331
D.) 6x + 7 = 331x

Part B
How many students were in each bus?

b

Step-by-step explanation:

6x+7-7=331-7

6x=324

6x/6=324/6

x=54

54 students on each bus

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

or