Four hundred pounds of copper are used in a typical 2 comma 1002,100-square-foot newly constructed house. Today's copper price is $3.503.50 per pound. a. If copper prices are expected to increase 8.48.4% per year (on average), what is the cost of copper going to be in a new 2 comma 3002,300-square-foot house built 1111 years from now? Use a cost-capacity factor of 1.0. b. To minimize building costs, do you think that another less-expensive material (e. g., aluminum) will be substituted for copper in the electrical wiring in new homes?

Explanation:

2,100 square foot house consists of 400 pounds copper which costs $3.5 per pound:

Cost of copper in 2,300 square foot house = $3.5 * 400 (2300/2100) = $1533.33

Cost of copper 11 years from now = $1533.33 * (1+0.084)^11 = $3723.55

To minimize building costs, do you think that another less-expensive material (e.g., aluminum) will be substituted for copper in the electrical wiring in new homes?

Yes, it can be substituted for another less expensive material with a proper factor of safety. However, heat loss or power loss is in aluminum is higher (electrical conductivity of copper is greater). Also, maintenance cost of aliminum wire is higher.

the correct option is c

answer; planning;