Speak with your neighbors about the questions below. Then on a piece of paper, use complete sentences to reflect on the following questions: › What is.

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Speak with your neighbors about the questions below. Then on a piece of paper, use complete sentences to reflect on the following questions: › What is a variable? › How are variables important to Algebra? › Why use variables at all? Finished? Put your homework in the Inbox. Make sure you name is on it and all loose papers are stapled together.

During a natural disaster, such as an earthquake or flood, many people must leave their homes and go to shelters. The table gives three situations. Number of PeopleNumber of BedsAmount of Food (lb) 1,0001,0103,000 5,0005,01015,000 10,00010,01030,000

Number of PeopleNumber of BedsAmount of Food (lb) 1,0001,0103,000 5,0005,01015,000 10,00010,01030,000 Number of PeopleNumber of people x number of people xx + 103x

For each number of people, how many beds and how much food per day will a relief group need? 1.15, Number of People Number of Beds Amount of Food (lb) 1,0001,0103,000 5,0005,01015,000 10,00010,01030,000 Number of people Number of people X number of people xx + 103x 1.15,010 beds; 45,000lb food beds; 1500 lb food beds; 24,600 lb food

Ricardo has 3 fewer apples than Jeremy. Let j stand for the number of apples Jeremy has. Write an expression for the number of apples Ricardo has. j - 3 Does 3 – j mean the same thing? In other words, does order matter? **Hint: Try it with numbers! Suppose Jeremy has 10 apples. Or 15 apples. How many would Jeremy have? Think about the steps you take to find the answer.

Hideki says, “I chose a number. I multiplied it by 7. Then I subtracted 4.” Let h stand for Hideki’s starting number. Write an expression for Hideki’s ending number. 7h – 4 Your turn… 1. Get two index cards: › On one, write a word problem like Hideki. › On the other, write an expression using mathematical notation with one variable (different from the first index card) 2. Now trade cards with a friend and translate each statement (the first into mathematical notation, the second into English).

 Fill in the following on your scantron: › Teacher: Krajewski › Class: Math I › First & Last Name, Grade  If you don’t know how to do a problem, don’t answer it! SKIP IT! DO NOT GUESS!!!