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Mathematics 21 Online
OpenStudy (anonymous):

Plz help The Party Room at Pennys Pizza rents for an initial fee of $25.00 per hour and then $5 per hour . Aislyn's bill for her birthday party was $40.00 for how many hours did she rent the room

OpenStudy (anonymous):

A.13 hours B. 8 Hours C.3 Hours D. 5Hour

OpenStudy (anonymous):

@ganeshie8

OpenStudy (anonymous):

@campbell_st

OpenStudy (anonymous):

@DanJS

OpenStudy (anonymous):

@Miracrown

OpenStudy (danjs):

Hi, you still need help here?

OpenStudy (anonymous):

ya

OpenStudy (anonymous):

plz

OpenStudy (danjs):

Is that the whole thing? The Party Room at Pennys Pizza rents for an initial fee of $25.00 per hour. Aislyn's bill for her birthday party was $40.00 for how many hours did she rent the room initial fee of 25 dollars per hour? U sure there isnt an initial fee + the price per hour , or is that it

OpenStudy (anonymous):

that is it i put the answers at the top

OpenStudy (danjs):

k Total Price = Price Per hour x Number of hours Let t = # hours $40 = $25*t

OpenStudy (anonymous):

?

OpenStudy (danjs):

None of the answers are right, i think there is more to the prob maybe. Total Price = Initial Fee + Price per hour*(hours rented)

OpenStudy (danjs):

as is , it is just 40/25 hours

OpenStudy (anonymous):

Hang on wrote the problem wrong

OpenStudy (danjs):

lol yeah, the initial fee isnt a rate per hour. It is a fixed cost.

OpenStudy (anonymous):

fixed

OpenStudy (anonymous):

@DanJS

OpenStudy (danjs):

The Party Room at Pennys Pizza rents for an initial fee of $25.00 "[per hour]" and then $5 per hour . Aislyn's bill for her birthday party was $40.00 for how many hours did she rent the room remove the part in "[ ]" i assume. The initial fee is 25 dollars flat rate. not per hour.

OpenStudy (anonymous):

ya

OpenStudy (danjs):

The function to model this scenario is a line, with a slope of 5 dollars per hour, and a y intercept of 25 dollars. Total Cost = [initial fee] + [Rate per hour] x [#hours]

OpenStudy (danjs):

Total Cost = 40 Initial Fee = 25 Rate Per hour = 5 # hours = t 40 = 25 + 5t solve for t (number of hours)

OpenStudy (anonymous):

3

OpenStudy (danjs):

right, here is the graph of the function

OpenStudy (danjs):

x axis is time in hours y axis is the cost when x=3, y=40

OpenStudy (danjs):

When x=0, the y intercept ( cost at zero hours) is 25 dolalrs

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