Math In Restaurants Worksheet With Answers
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11Name:________________________________ Date:__________________
Math in Restaurants: Take the Challenge
ANSWER KEY
Sue Torres, chef and owner of Sueños restaurant in New York City, is trying to determine
what price she should charge for guacamole, one of her restaurant’s most popular dishes.
This is a little tricky, since the cost of avocados, the main ingredient, changes frequently.
Your challenge is to help Sue by doing the following:
A. Look for a trend in the costs of avocados over the past three years and predict the
average cost of avocados for the next year.
B. Recommend a menu price for guacamole.
(This activity can also be completed online. Go to , click on “The
Challenges,” then scroll down and click on “Math in Restaurants: Take the Challenge.”)
A. LOOK FOR A TREND IN AVOCADO PRICES AND PREDICT THE AVERAGE COST FOR
NEXT YEAR:
1. Identify what you already know. Look at the graph and chart (on the last two pages of
this handout) for information.
• The title of the graph or chart:
_____HAAS Avocado Costs 2009-2011______
• The two sets of data displayed on each axis of the graph are:
_______y axis: Cost per Case___________________________
_______x axis: Months_______________________________
• The number of avocados in a case is:
___48___.
2. Plan it out. What is the relationship between the cost of a case of avocados and time (in
months)? Try estimating a trend line, if it is somewhat linear. Describe the strategy you
plan to use to find a line of best fit.
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