Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. Mrs. Bennett wants to get family portraits taken and is comparing price... Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. Mrs. Bennett wants to get family portraits taken and is comparing prices between two different photography studios. Farrell Photography charges $27 per portrait sheet, plus $74 for the session fee. Lasting Memories Company charges $82 for the session fee and $25 per portrait sheet. If Mrs. Bennett plans to purchase a certain number of portrait sheets, the cost will be the same at either studio. How many portrait sheets would that be? What would the total cost be? If Mrs. Bennett orders ___ portrait sheets, the portrait session will cost $___ at either studio.
Understand the Problem
The question is asking to create a system of equations based on the pricing of two photography studios and then solve for the number of portrait sheets Mrs. Bennett should order so that the total costs are the same. It also requires calculating the total cost for that number of sheets.
Answer
If Mrs. Bennett orders 4 portrait sheets, the portrait session will cost $182 at either studio.
Answer for screen readers
Mrs. Bennett should order 4 portrait sheets. The portrait session will cost $182 at either studio.
Steps to Solve
- Set up the equations for each studio's pricing
Let ( x ) be the number of portrait sheets Mrs. Bennett orders.
For Farrell Photography, the total cost ( C_1 ) can be expressed as: $$ C_1 = 27x + 74 $$
For Lasting Memories Company, the total cost ( C_2 ) can be expressed as: $$ C_2 = 25x + 82 $$
- Set the equations equal to each other
Since we want the costs to be the same at either studio, we set the two equations equal: $$ 27x + 74 = 25x + 82 $$
- Solve for ( x )
First, we will isolate ( x ) by subtracting ( 25x ) from both sides: $$ 27x - 25x + 74 = 82 $$
This simplifies to: $$ 2x + 74 = 82 $$
Next, subtract ( 74 ) from both sides: $$ 2x = 8 $$
Then divide by ( 2 ) to find ( x ): $$ x = 4 $$
- Calculate the total cost
Now that we have ( x ), we can find the total cost using either studio's equation. Using Farrell Photography's equation: $$ C_1 = 27(4) + 74 = 108 + 74 = 182 $$
So, the total cost is $182.
Mrs. Bennett should order 4 portrait sheets. The portrait session will cost $182 at either studio.
More Information
This means that whether Mrs. Bennett chooses Farrell Photography or Lasting Memories Company, the total cost for 4 portrait sheets will be the same, ensuring she pays the same amount regardless of her choice.
Tips
- Not Setting Equations Equal: Some might forget to equal the two cost equations when finding ( x ).
- Incorrect Algebraic Manipulation: Errors in calculating or isolating ( x ) can lead to an incorrect number of sheets.
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