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3.10 PART 3

Epic Design Team

Created on March 8, 2024

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Transcript

learn: systems from word problems

1. Define the variables 2. Write the 2 equations using those variables 3. Solve the system of equations 4. Interpret the solution

x = number of ATM transactions y = total fees paid

First National Bank fees: y=2.5x+10 Liberty Bank fees: y=3.25x

y=3.25x y=3.25(13.33) y=43.32

3.25x=2.5x+10 0.75x=10 x=13.33

After 13.33 ATM fees, you will be paying the same amount of money in fees at both banks. Because you cannot use the ATM 13.33 times, we can say the two banks will never have the EXACT same fees.