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

Answer 1

Let's denote the cost of one order of fries as \( x \).

From the information given:

**For Monday:**
- Sandwich = $4.25
- Two orders of fries = \( 2x \)

So, the total cost for Monday is:
\[ 4.25 + 2x \]

**For Tuesday:**
- Hamburger = $6.75
- One order of fries = \( x \)

So, the total cost for Tuesday is:
\[ 6.75 + x \]

According to the problem, Camille spends the same amount of money on lunch each day, so we can set the two totals equal to each other:
\[ 4.25 + 2x = 6.75 + x \]

Now, we will solve for \( x \):

1. Subtract \( x \) from both sides:
\[ 4.25 + 2x - x = 6.75 \]
\[ 4.25 + x = 6.75 \]

2. Subtract \( 4.25 \) from both sides:
\[ x = 6.75 - 4.25 \]
\[ x = 2.50 \]

Thus, the cost of one order of fries is \( \boxed{2.50} \). Therefore, the correct answer is **D**.