Answer:
15
Explanation:
they want to know how many passengers can travel for a total fare of 750, and this can be expressed as follows:
total fare (t) = number of passengers (n) × fare per passenger (f)
where t=750
n is the value they're asking for
f = 5 + the previous fare per passenger
you can work out this f using the same formula
t=n×f
with all the previous values
t=540
n=12
f=the previous fare per passenger
540=12×f
45=f
so the new fare is
f= 5 + the previous fare per passenger
f= 5+45
f=50
and the number of passengers who can travel with the new fare is
t=n×f
750=n×50
15=n