A waitress made $3.14 per hour plus $71 in tips on a Friday evening shift. The amount of money she makes for the night is given by the function P(t)=3.14t+71, where t is the number of hours she worked. How much would a waitress make for 4-hour shift if the pay rate is the same? A 7-hour shift?

Guest Jul 13, 2020

#1**+1 **

Substitute 4 for t in the given function:

P(t)=3.14t+71

P(t)=3.14(4)+71

P(t)=12.56+71

P(t)=83.56

Substitute 7 for t in the given function:

P(t)-3.14t+71

P(t)=3.14(7)+71

P(t)=21.98+71

P(t)=92.98

In 4 hours the waitress makes** $83.56** and 7 hours she makes **$92.98.**

gwenspooner85 Jul 14, 2020