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jan quint earns 11.00 an hour at her job and is entitled to time and a half for overtime, and double tie on holidays. Last week she worked 40 hours of regular time, 9 hours of overtime, and 12 hours of holiday time. How much did she earn last week?

A. 720.50
B. 852.50
C.803.00
D.612.00

Respuesta :

pmayl
Let's find an expression for Jan's earnings in terms of normal wage, hourly wage, and overtime wage:
x= normal hours
y= OT hours
z = holiday hours
Jan earns 11/hour on normal time.
She earns 11 * 1.5 = 16.5/hour on OT
She earns 11 * 2 = 22/hour on holidays
The expression for her earnings is:
11x + 16.5y + 22z = earnings
Plugging in her hours (40 reg, 9 OT, 12 holiday):
11(40) + 16.5(9) + 22(12) = earnings
440 + 148.5 + 264 = earnings

earnings = 852.50
Answer is B

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