N

Write the rate as a unit rate

729 riders in 9 subway cars

А

The unit rate is

This

(Simplify your answ

riders/car

Unit rate = 81 riders / car.

Step-by-step explanation:

Given

729 riders in 9 cars

we have to find unit rate in terms of riders per car

let the the riders per car (i. e rate) be x.

If there are 9 cars then

total no. of riders in 9 cars = no. of cars * riders per car = 9*x = 9x

given that 729 riders in 9 cars

then

9x = 729

=> x = 729/9 = 81

Thus, riders per car = x = 81.

Unit rate is 81 riders per car.