Digits, Grade 7, Volume 1, Homework Helper

### 2-2: TEKS Practice

• 1. Last night, 4 friends went out to dinner at a restaurant. They split the bill evenly. Each friend paid \$12.75. If B represents the total bill in dollars, what equation could you use to find the value of B?

• A. B + 4 = 12.75

• B. 4B = 12.75

• C. b over 4 , equals , 12.75

• D. B − 4 = 12.75

• 2. A farmer ships oranges in crates that weigh 6.1 lb each when empty. Each orange weighs 0.38 lb. The total weight of a crate filled with oranges is 63.1 lb. Write a word equation you could use to find the number of oranges packed in each crate.

• A. total weight = weight of crate + (weight of one orange) × (number of oranges)

• B. total weight = weight of crate + weight of one orange + number of oranges

• C. total weight = (weight of crate) × (weight of one orange) + number of oranges

• D. total weight = weight of crate − (weight of one orange) × (number of oranges)

• E. total weight = (weight of crate) × (weight of one orange) × (number of oranges)

• 3. At a graduation dinner, an equal number of guests were seated at each of 3 large tables, and 7 late-arriving guests were seated at a smaller table. There were 37 guests in all. If n represents the number of people seated at each of the large tables, what equation could you use to find the value of n?

• A. 3n − 7 = 37

• B. 3n + 7 = 37

• C. 7n + 3 = 37

• D. 7n − 3 = 37

• 4. Which answer shows the equation 7x − 18 = 17 in words?

• A. Eighteen less than seven times a number is 17.

• B. Seven less than eighteen times a number is 17.

• C. Seven more than eighteen times a number is 17.

• D. Eighteen more than seven times a number is 17.

• 5. Open-Ended

• a. Write an equation to represent the following description.

Fourteen more than three times a number is 12.

• A. 14x − 3 = 12

• B. 3(x + 14) = 12

• C. 3x + 14 = 12

• D. 3x − 14 = 12

• E. 14x + 3 = 12

• b. Describe a real-world situation the equation could represent.

• 6.

• a. Writing You want to buy a pet iguana that costs \$48. You already have \$12 and you plan to save \$9 per week. If w represents the number of weeks until you have enough money to buy the iguana, what equation could you use to find the value of w?

• A. 9 − 12w = 48

• B. 12w − 9 = 48

• C. 9w + 12 = 48

• D. 12 − 9w = 48

• E. 9w − 12 = 48

• F. 12w + 9 = 48

• b. Explain how you could set up an equation to find the amount of money you should save each week if you want to buy the iguana in six weeks.

End ofPage 56