Respuesta :
Answer:
S = 935 when t ≤ 7
S = (180t - 325) when t > 7
Step-by-step explanation:
John's weekly salary = $375 + commission on number of cars he sell
Commission for the first seven cars sold = $80 per car
Commission above 7 cars = $180 per car
If John sells t cars each week then commission earned by John
= 80×7 + 180(t - 7)
So the salary for week = 375 + commission
S = 375 + 560 + 180(t - 7)
S = 935 + 180(t - 7)
S = 935 when t ≤ 7
(180t - 325) when t > 7
The function that can be used to calculate John's weekly salary, S, when he sells t cars each week is S = 935 + 180(x- 7).
Given
John works for the local used car dealership.
His weekly salary is $375 plus a commission based on the number of cars that he sells.
His commission is $80 per car for the first 7 cars sold each week.
For any car over 7 sold each week, John earns a commission of $180 per car.
Commission for the first seven cars sold = $80 per car
Commission above 7 cars = $180 per car
John's weekly salary = $375 + commission on the number of cars he sells.
If John sells x cars each week then the commission earned by John
= 80×7 + 180(x- 7)
Therefore,
John's weekly salary, S, when he sells t cars each week is;
Each week salary = $375 + 80×7 + 180(x- 7)
Each week salary = $375 + 560 + 180(x- 7)
Each week salary = 935 + 180(x- 7)
S = 935 + 180(x- 7)
Hence, the function that can be used to calculate John's weekly salary, S, when he sells t cars each week is S = 935 + 180(x- 7).
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