Question

Andy bought 8 feet of copper pipe at $10.50 per foot. He also bought 5.5 feet of aluminum pipe at $8.25 per foot.

Explain how to calculate the total cost of Andy's purchase.


A.
Step 1 Multiply $10.50 by 8 to calculate the cost of the copper pipe.

Step 2 Multiply $8.25 by 5.5 to calculate the cost of the aluminum pipe.

Step 3 Add the two amounts together.


B.
Step 1 Multiply $10.50 by 8 to calculate the cost of the copper pipe.

Step 2 Multiply $8.25 by 5.5 to calculate the cost of the aluminum pipe.

Step 3 Subtract the two amounts.


C.
Step 1 Divide $10.50 by 8 to calculate the cost of the copper pipe.

Step 2 Divide $8.25 by 5.5 to calculate the cost of the aluminum pipe.

Step 3 Add the two amounts together.


D.
Step 1 Divide $10.50 by 8 to calculate the cost of the copper pipe.

Step 2 Divide $8.25 by 5.5 to calculate the cost of the aluminum pipe.

Step 3 Subtract the two amounts.

Answer 1

The answer is A because it's $10.50 PER foot for copper pipe and $8.25 PER foot for the aluminum pipe which means to multiply by how many feet of the pipe there are and they want a total cost which means to add the two products. 

Answer 2

Hey!
The Answer is A!.
Hope this helps ~Nayiah~