SOLUTION: Average movie prices in the United States are, in general, lower than in other countries. It would cost $80.55 to buy three tickets in Japan plus two tickets in Switzerlan
Algebra ->
Customizable Word Problem Solvers
-> Misc
-> SOLUTION: Average movie prices in the United States are, in general, lower than in other countries. It would cost $80.55 to buy three tickets in Japan plus two tickets in Switzerlan
Log On
Question 1184822: Average movie prices in the United States are, in general, lower than in other countries. It would cost $80.55 to buy three tickets in Japan plus two tickets in Switzerland. Three tickets in Switzerland plus two tickets in Japan would cost $75.95. How much does an average movie ticket cost in each of these countries? Found 2 solutions by josgarithmetic, greenestamps:Answer by josgarithmetic(39613) (Show Source):
If add corresponding members and divide by 5, then ;
you can multiply this by 2 to help eliminate z, and you can multiply this by 3 to help eliminate j.
There are many different ways to solve this problem using formal algebra. All of them involve solving a system of equations in two variables by in some way eliminating one of the variables.
Probably the two most common methods are elimination and substitution.
But for this particular problem, because of the way the information is given, my preferred method is as follows.
Here is what the given information tells us:
3j+2s=80.55
2j+3s=75.95
The two pieces of given information tell us that if we buy 1 fewer Japan tickets and 1 more Switzerland ticket the total price goes down by $4.60. Note that means the price is $4.60 more in Japan than in Switzerland.
Let's start with the second piece of given information and continue swapping a Japan ticket for a Switzerland ticket.
(