Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.Fred, an office manager, needs to find a courier to deliver a package. The first courier he is considering charges a fee of $10 plus $3 per pound. The second charges $15 plus $2 per pound. Fred determines that, given his package's weight, the two courier services are equivalent in terms of cost. What is the weight? How much will it cost?At a package weight of pounds, the two couriers both cost $.
Q. Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.Fred, an office manager, needs to find a courier to deliver a package. The first courier he is considering charges a fee of $10 plus $3 per pound. The second charges $15 plus $2 per pound. Fred determines that, given his package's weight, the two courier services are equivalent in terms of cost. What is the weight? How much will it cost?At a package weight of pounds, the two couriers both cost $.
Define Variables: Let's define the variables. Let x represent the weight of the package in pounds, and let y represent the total cost for the courier service.
Write Equations: Write the equations based on the given information. For the first courier, the cost is $10 plus $3 per pound, which gives us the equation y=3x+10. For the second courier, the cost is $15 plus $2 per pound, which gives us the equation y=2x+15.
Set Equations Equal: Since the costs are equivalent, we can set the two equations equal to each other to find the weight of the package. So, we have 3x+10=2x+15.
Solve for x: Solve for x by subtracting 2x from both sides of the equation to isolate x on one side. This gives us x=15−10.
Calculate x: Calculate the value of x. x=15−10=5. So, the weight of the package is 5 pounds.
Substitute x: Substitute the value of x back into either of the original equations to find the total cost y. Using the first courier's equation: y=3(5)+10.
Calculate Total Cost: Calculate the total cost y. y=3(5)+10=15+10=25. So, the cost for both couriers is $25.
More problems from Solve a system of equations using substitution: word problems