Southern California's electric company uses a "three tier" cost structure for household electric bills. As of Jan 2017, for a given month, the first 232 kWh is $0.08291, the next 696 kWh is $0.16838, and any additional kWh is $0.23336. Write a function that takes a household month's kWh, and the cutoffs and prices for the tiers, and returns that month's electric cost. If the input is 1700.0 232 0.08291 696 0.16838 0.23336, the output is $428.289 (output a $ before the result). Hints: Think carefully through the logic of calculating the various cost contributions of each tier. We recommend calculating tier 3 first, then tier 2. Declare a variable named remainingKWh. Initialize it with the monthKWh. Also declare monthCost, initialized with 0.0. Start with an if statement if remainingKWh > tier2Cutoff. If yes, compute just the kWh that are part of tier 3, which is remainingKWh - tier2Cutoff. Multiply that amount by tier3Cost, and add that to the monthCost. Then decrease remainingKWh by tier2Cutoff. Repeat for tier2. For whatever is left in remainingKWh, multiply by tier1Cost. I can only add to the code. I cannot change anything. #include using namespace std; double CalculateMonthElectricCost(double monthKWh, double tier1Cutoff, double tier1Cost, double tier2Cutoff, double tier2Cost, double tier3Cost) { // Type your code here } int main() { double monthKWh; double tier1Cutoff, tier2Cutoff; // In kWh double tier1Cost, tier2Cost, tier3Cost; // In $ per kWh double monthCost; cin >> monthKWh; cin >> tier1Cutoff; cin >> tier1Cost; cin >> tier2Cutoff; cin >> tier2Cost; cin >> tier3Cost; monthCost = CalculateMonthElectricCost(monthKWh, tier1Cutoff, tier1Cost, tier2Cutoff, tier2Cost, tier3Cost); cout << "$" << monthCost << endl; return 0; }
17.49 PRACTICE: Functions***: Electric bill C++
Southern California's electric company uses a "three tier" cost structure for household electric bills. As of Jan 2017, for a given month, the first 232 kWh is $0.08291, the next 696 kWh is $0.16838, and any additional kWh is $0.23336. Write a function that takes a household month's kWh, and the cutoffs and prices for the tiers, and returns that month's electric cost. If the input is 1700.0 232 0.08291 696 0.16838 0.23336, the output is $428.289 (output a $ before the result).
Hints:
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Think carefully through the logic of calculating the various cost contributions of each tier. We recommend calculating tier 3 first, then tier 2.
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Declare a variable named remainingKWh. Initialize it with the monthKWh. Also declare monthCost, initialized with 0.0.
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Start with an if statement if remainingKWh > tier2Cutoff. If yes, compute just the kWh that are part of tier 3, which is remainingKWh - tier2Cutoff. Multiply that amount by tier3Cost, and add that to the monthCost. Then decrease remainingKWh by tier2Cutoff.
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Repeat for tier2.
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For whatever is left in remainingKWh, multiply by tier1Cost.
I can only add to the code. I cannot change anything.
#include <iostream>
using namespace std;
double CalculateMonthElectricCost(double monthKWh, double tier1Cutoff, double tier1Cost,
double tier2Cutoff, double tier2Cost, double tier3Cost) {
// Type your code here
}
int main() {
double monthKWh;
double tier1Cutoff, tier2Cutoff; // In kWh
double tier1Cost, tier2Cost, tier3Cost; // In $ per kWh
double monthCost;
cin >> monthKWh;
cin >> tier1Cutoff;
cin >> tier1Cost;
cin >> tier2Cutoff;
cin >> tier2Cost;
cin >> tier3Cost;
monthCost = CalculateMonthElectricCost(monthKWh, tier1Cutoff, tier1Cost, tier2Cutoff, tier2Cost, tier3Cost);
cout << "$" << monthCost << endl;
return 0;
}
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