Casey bought sandwiches and a bag of chips. each sandwich cost three times as much as bag of chips. she bought 5 sandwiches for 6 dollars each and spent 42 dollars. how many bags of chips b did she buy?

She bought 3 bags of chips .

Step-by-step explanation:

Cost of 1 sandwich = $6

We are given that Each sandwich cost three times as much as bag of chips

So, Cost of a bag of chips =

Let x be the no. of bags of chips she bought

Now we are given that  She bought 5 sandwiches for 6 dollars each and spent 42 dollars.

Cost of 6 sandwiches =

Cost of x  bags of chips = 2x

ATQ

Hence she bought 3 bags of chips .