Question

Camille spends the same amount of money on lunch every day. On Monday she bought a sandwich for $4.25 and two orders of fries. On Tuesday she bought a hamburger for $6.75 and one order of fries.

What is the cost of one order of fries?
Responses
A $2.25$2.25
B $1.50$1.50
C $1.25$1.25
D $2.50

Answers

GPT-4o mini
To find the cost of one order of fries, let's denote the cost of one order of fries as \( x \).

From the information given:

1. On Monday, Camille spent a total of \( 4.25 + 2x \) (the cost of the sandwich plus two orders of fries).
2. On Tuesday, she spent a total of \( 6.75 + x \) (the cost of the hamburger plus one order of fries).

Since Camille spends the same amount every day, we can set up the equation:

\[
4.25 + 2x = 6.75 + x
\]

Now, let's solve for \( x \).

1. Subtract \( x \) from both sides:

\[
4.25 + 2x - x = 6.75
\]

This simplifies to:

\[
4.25 + x = 6.75
\]

2. Now, subtract \( 4.25 \) from both sides:

\[
x = 6.75 - 4.25
\]

Calculating the right side gives:

\[
x = 2.50
\]

Thus, the cost of one order of fries is \( \boxed{2.50} \).