How many flowers should Joanne estimate she needs for this wedding?

Joanne works for a florist. She needs to estimate how many flowers to order for 12 wedding bouqeets. She did similiar bouqets for two weddings in the past. For on she used 72 roses for 5 similar bouets and for the other, she made 16 similar bouqets using 243.



How many flowers should Joanna estimate she needs for this wedding?



[show work, please.]
How many flowers should Joanne estimate she needs for this wedding?
Greetings,



assuming a linear relationship between the number of bouquets and the number of flowers



f = mb + c, where m is the slope of the line and c is the intercept



72 = 5m + c

243 = 16m + c



subtracting the two equations gives



171 = 11 m

m = 15.5



72 = 5*15.5 + c, substituting back into the first equation gives

c = 72 - 5*15.5

c = -5.5



f = 15.5b - 5.5, for 12 bouquets

f = 15.5(12) - 5.5

f = 180.5



She would need 181 flowers for 12 bouquets



Regards
Reply:Joanne has more experience that a lot of people. Why can't she figure it out? I would know what I want without her experience. You go with what you want. Simplicity is the key, I think. The plain and simple with a ribbon or etc. would be perfect. It would be elegant. It doesn't have to cost a lot or weigh you down carrying it down the isle to be the right thing.
Reply:72 roses for 5 wedding bouquet.

On the average, 72/5 =12.4 roses for 1 wedding.

In the other situation, 243 roses for 16 weddings.

On the average, 243/16 = 15 %26amp; 3/16 for 1 wedding.

So, based on these 2 numbers, for 12 weddings, she needs anywhere between 144 and 180 roses.
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