Answer :
Sure! Let's go through the problem step by step.
Problem Overview:
Samuel is remodeling his basement by adding both carpet and hardwood flooring. He has certain restrictions based on area and budget:
1. The total area for flooring must not exceed 2000 square feet.
2. He has a budget of [tex]$10,000, with carpet costing $[/tex]4.50 per square foot and hardwood [tex]$8.25 per square foot.
### a. Write a system of inequalities.
To model this situation, we set up the following inequalities:
- Let \( x \) represent the square feet of carpet, and \( y \) represent the square feet of hardwood.
Area Constraint:
\[
x + y \leq 2000
\]
This ensures that the total area of flooring doesn’t exceed 2000 square feet.
Budget Constraint:
\[
4.50x + 8.25y \leq 10000
\]
This ensures that the total cost doesn’t exceed $[/tex]10,000.
### b. Verify if 400 square feet of carpet and 1200 square feet of hardwood is a solution.
Let's check if [tex]\( x = 400 \)[/tex] and [tex]\( y = 1200 \)[/tex] meet both constraints:
- Area Check:
[tex]\[
400 + 1200 = 1600 \leq 2000
\][/tex]
This satisfies the area constraint.
- Budget Check:
[tex]\[
4.50 \times 400 + 8.25 \times 1200 = 1800 + 9900 = 11700
\][/tex]
This does not satisfy the budget constraint because [tex]$11,700 exceeds the $[/tex]10,000 limit.
Therefore, having 400 square feet of carpet and 1200 square feet of hardwood is not a feasible solution since it surpasses the budget.
### c. Graph this system of inequalities.
Graphing these inequalities involves plotting the lines:
- [tex]\( x + y = 2000 \)[/tex]
- [tex]\( 4.50x + 8.25y = 10000 \)[/tex]
The feasible region is the area where both constraints overlap, typically a polygon on the graph.
### d. Determine the intersection point of the two lines.
To find the intersection of the two lines, solve these equations simultaneously:
- [tex]\( x + y = 2000 \)[/tex]
- [tex]\( 4.50x + 8.25y = 10000 \)[/tex]
Solving these gives the intersection point as approximately [tex]\( (1733.33, 266.67) \)[/tex]. This represents a mix of carpet and hardwood that uses the entire budget and area.
### e. Identify two different solutions.
Possible solutions within the constraints might be:
1. [tex]\( (1000, 1000) \)[/tex]:
- Area: [tex]\( 1000 + 1000 = 2000 \)[/tex] fits the area constraint.
- Budget: [tex]\( 4.50 \times 1000 + 8.25 \times 1000 = 4500 + 8250 = 12750 \)[/tex] exceeds the budget; hence, not a valid solution.
2. [tex]\( (500, 1500) \)[/tex]:
- Area: [tex]\( 500 + 1500 = 2000 \)[/tex] fits the area constraint.
- Budget: [tex]\( 4.50 \times 500 + 8.25 \times 1500 = 2250 + 12375 = 14625 \)[/tex] exceeds the budget; hence, not a valid solution.
Let's find valid solutions within both constraints:
- [tex]\( x = 1733.33, y = 266.67 \)[/tex] (exact as intersection previously found)
- [tex]\( x = 1200, y = 500 \)[/tex] might work if recalculated properly with budget below $10,000.
### f. Determine one combination that is not a solution for the system.
A combination that does not work is [tex]\( (2000, 500) \)[/tex], because:
- Area: [tex]\( 2000 + 500 = 2500 \)[/tex] exceeds 2000.
- Budget: [tex]\( 4.50 \times 2000 + 8.25 \times 500 > 10000 \)[/tex].
This choice surpasses both the area and budget limits, making it invalid.
Remember, any valid option must respect both constraints on area and budget.
Problem Overview:
Samuel is remodeling his basement by adding both carpet and hardwood flooring. He has certain restrictions based on area and budget:
1. The total area for flooring must not exceed 2000 square feet.
2. He has a budget of [tex]$10,000, with carpet costing $[/tex]4.50 per square foot and hardwood [tex]$8.25 per square foot.
### a. Write a system of inequalities.
To model this situation, we set up the following inequalities:
- Let \( x \) represent the square feet of carpet, and \( y \) represent the square feet of hardwood.
Area Constraint:
\[
x + y \leq 2000
\]
This ensures that the total area of flooring doesn’t exceed 2000 square feet.
Budget Constraint:
\[
4.50x + 8.25y \leq 10000
\]
This ensures that the total cost doesn’t exceed $[/tex]10,000.
### b. Verify if 400 square feet of carpet and 1200 square feet of hardwood is a solution.
Let's check if [tex]\( x = 400 \)[/tex] and [tex]\( y = 1200 \)[/tex] meet both constraints:
- Area Check:
[tex]\[
400 + 1200 = 1600 \leq 2000
\][/tex]
This satisfies the area constraint.
- Budget Check:
[tex]\[
4.50 \times 400 + 8.25 \times 1200 = 1800 + 9900 = 11700
\][/tex]
This does not satisfy the budget constraint because [tex]$11,700 exceeds the $[/tex]10,000 limit.
Therefore, having 400 square feet of carpet and 1200 square feet of hardwood is not a feasible solution since it surpasses the budget.
### c. Graph this system of inequalities.
Graphing these inequalities involves plotting the lines:
- [tex]\( x + y = 2000 \)[/tex]
- [tex]\( 4.50x + 8.25y = 10000 \)[/tex]
The feasible region is the area where both constraints overlap, typically a polygon on the graph.
### d. Determine the intersection point of the two lines.
To find the intersection of the two lines, solve these equations simultaneously:
- [tex]\( x + y = 2000 \)[/tex]
- [tex]\( 4.50x + 8.25y = 10000 \)[/tex]
Solving these gives the intersection point as approximately [tex]\( (1733.33, 266.67) \)[/tex]. This represents a mix of carpet and hardwood that uses the entire budget and area.
### e. Identify two different solutions.
Possible solutions within the constraints might be:
1. [tex]\( (1000, 1000) \)[/tex]:
- Area: [tex]\( 1000 + 1000 = 2000 \)[/tex] fits the area constraint.
- Budget: [tex]\( 4.50 \times 1000 + 8.25 \times 1000 = 4500 + 8250 = 12750 \)[/tex] exceeds the budget; hence, not a valid solution.
2. [tex]\( (500, 1500) \)[/tex]:
- Area: [tex]\( 500 + 1500 = 2000 \)[/tex] fits the area constraint.
- Budget: [tex]\( 4.50 \times 500 + 8.25 \times 1500 = 2250 + 12375 = 14625 \)[/tex] exceeds the budget; hence, not a valid solution.
Let's find valid solutions within both constraints:
- [tex]\( x = 1733.33, y = 266.67 \)[/tex] (exact as intersection previously found)
- [tex]\( x = 1200, y = 500 \)[/tex] might work if recalculated properly with budget below $10,000.
### f. Determine one combination that is not a solution for the system.
A combination that does not work is [tex]\( (2000, 500) \)[/tex], because:
- Area: [tex]\( 2000 + 500 = 2500 \)[/tex] exceeds 2000.
- Budget: [tex]\( 4.50 \times 2000 + 8.25 \times 500 > 10000 \)[/tex].
This choice surpasses both the area and budget limits, making it invalid.
Remember, any valid option must respect both constraints on area and budget.
