PreAlgebra Comparing and Scaling 23 Monday September 8 Problem 22 ACE Questions 1 and 2 answers What did we do last time 22 In investigation 22 we completed a table to pizza prices for Howdy and Royal Pizza ID: 774124
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Pre-Algebra Comparing and Scaling 2.3 Monday, September 8
Problem 2.2 ACE Questions #1 and #2 answers
What did we do last time 2.2 In investigation 2.2 we completed a table to pizza prices for Howdy and Royal Pizza What was the equation we came up with for Howdy’s pizza? How about for Royal Pizza? Equation for Royal Pizza: P=12n Equation for Howdy’s Pizza: P=13n What does the 13 represent in the equation for Howdy’s pizza? What does the 12 represent in the equation for Royal’s pizza?
Learning Target I will be able to identify a unit rate in a description, a n equationa table, or a graph.
Vocabulary Constant of proportionality: The constant ratio of two proportional quantities , x and y; usually written as y = kx, where k is the constant of proportionality. For example in the equation y= ¾ x, the constant or proportionality is ¾. The graph for this relationship is shown below. Who can tell me the definition of a unit rate?
Problem 2.3 A
Problem 2.3 A Number of oranges (n) 10 5 1 20 1113Cost, C $2$1$.20$4 $2.20 $2.60
Problem 2.3 A Number of oranges (n) 10 5 1 20 1113Cost, C $2$1$.20$4 $2.20 $2.60
Problem 2.3 A Number of oranges (n) 10 5 1 20 1113Cost, C $2$1$.20$4 $2.20 $2.60 5a. Every time the cost of oranges goes up by $1, the number of oranges increases by 5. 5b. C = .20n, this equation says that every time the number of oranges goes up by 1, the cost goes up by $.20. 5c. $.20/1 orange and 5 oranges/$1 5d. The constant of proportionality and the unit rate are the same.
Problem 2.3 B
Problem 2.3 B
Problem 2.3 B
Problem 2.3 C
Problem 2.3 C
Problem 2.3 C 4. Gus should buy the pasta at Fresh Foods, it is $.83/box.
Rate your understanding I will be able to identify a unit rate in a description, an equation a table, or a graph.
Homework ACE Questions P. 51 #9 and #10