To calculate: The price of the food items Hamburger, large fries and large colas.
Answer to Problem 80AYU
The price of the food items are hamburger
Explanation of Solution
Given information:
One group of customers paid
Second group of customers paid
Third group of customers paid
Formula used:
Calculation:
Consider the provided information that one group of customers paid
Second group of customers paid
Third group of customers paid
Let x denote the price of hamburger, y denote the price of large fries and z denote the price of large colas.
From the above data, the equations are formulated as,
Since, there are three equations are there and three variables are there so the data is sufficient to compute the price of each item.
Eliminate the variable y from the above two equations,
Subtract the equations,
To obtain,
Now multiply the equation
To obtain,
Now, solve the equations
Now substitute
Therefore, the value of y is
Thus, the price of the food items are hamburger
Chapter 11 Solutions
Precalculus
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