Evaluate 3r³+5,when r=2
2 answers:
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Answer:
Part a) The variables are
x (the number of packages of Twinkies that were sold)
y (the number o boxes of juice that were sold)
Part b) The system of equations is
and
Part c)
Part d) The value of y represent the number of boxes of juice that were sold
The value of x represent the number of packages of Twinkies that were sold
Step-by-step explanation:
Part a) Define the variables in this situation
Let
x-----> the number of packages of Twinkies that were sold
y----> the number of boxes of juice that were sold
Part b) Write a system of equations that model the problem
we know that
------> equation A
---> equation B
Part c) Use the linear combination method to find the solution to the system you wrote in part b
Multiply equation A by -1.65
------> equation C
Adds equation C and equation B
Find the value of x
Part d) Using a complete sentence, explain what the solution found in part c represents
The value of y represent the number of boxes of juice that were sold
so
The value of x represent the number of packages of Twinkies that were sold
so