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7th Math 2.19 Version B

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Last updated over 2 years ago
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Math - [Lesson 2.19]

Teacher: Mr. Kovalik (408) 314-1092

Objective and Summary:
SWBAT write expressions and evaluate them with substitution
Movie Magic--Abel, Babel, and Cabel are going to the movies. Each brother will purchase one popcorn for p dollars and a soda for s dollars.
Question 1
1.

a) Write an expression for how much money all three brothers spend in total.

CFS:
#1: Writes accurate expression with appropriate variables

Question 2
2.

b) At Mancini's Movies, the brothers will be charged $6 for each popcorn and $3 for each soda.
Evaluate your expression from part a) to find the total cost if they went to this theater.

"The total cost at Mancini's Movies is..."

CFS:
#1: Accurately evaluates expression by using substitution

Question 3
3.

c) At Bizzell's Blockbusters, the brothers will be charged $4.10 for each popcorn and $4.50 for each soda.
Evaluate your expression from part a) to find the total cost if they went to this theater.

"The total cost at Bizzell's Blockbusters is..."

CFS:
#1: Accurately evaluates expression by using substitution

Next-Gen--Mr. Kovalik has decided that he wants to buy a PS5 and four new games, no matter how expensive the console may be after scalpers increase the prices.
Question 4
4.

a) Write an expression for Mr. Kovalik's total cost if p represents the price of a PS5 and g represents the price of each game.

CFS:
#1: Writes accurate expression with appropriate variables

Question 5
5.

b) GameStop and Amazon are all sold out, but Mr. Kovalik finds a PS5 on ebay for $950. The games are $50 each.
Use your expression from part a) to find the total cost.

CFS:
#1: Accurately evaluates expression by using substitution

Question 6
6.

Substitute!--You are given the expression -3x+12y. Evaluate the expression when x=-5 and y=2.

CFS:
#1: Accurately evaluates expression by using substitution

Question 7
7.

Match--Which of the following expressions are equivalent?

Question 8
8.

Delicious--James is ordering lunch for his friends at El Paisa. Each mega quesadilla costs $6 and each torta costs $7.25.

a) Write an expression for how much money he will spend on the meal for any number of orders.

Question 9
9.

b) Use your expression in part a) to find the total cost if 3 people order mega quesadillas and 2 people order tortas. Make sure to show how you substitute.

Split--Jimmy and Timmy are best friends who eat lunch together every day. Today they plan to go to a sandwich shop and each order a turkey sandwich. They will also get one order of chips to share.
Question 10
10.

a) Write an expression that describes the total amount of money the friends will spend on their meal if t represents the cost for a turkey sandwich and c represents the cost of a bag of chips.

CFS:
#1: Writes accurate expression with appropriate variables

Question 11
11.

b) Subway sells turkey sandwiches for $5.25 and chips for $1.20.
Quiznos sells turkey sandwiches for $5.15 and chips for $1.25.

Which shop should they go to?
**You must evaluate your expression in part a) using the costs given at each restaurant and SYW in Formative**

CFS:
#1: Accurately evaluates expressions by using substitution