7.4 Independent Practice

Emily spent $57.68 on eight candy bars. Write an equation that can be used to find the cost, c, of each candy bar.

Mathematical Equivalence

ON

Emily spent $57.68 on eight candy bars. How much did each candy bar cost?

Mathematical Equivalence

ON

Eduardo and his friends are gaming online on a popular website. An hour later, 6 friends go offline. Five of them continue playing. Write an equation to find the number of Eduardo's friends, n, that were online initially.

Mathematical Equivalence

ON

Smith and his friends are gaming online on a popular website. An hour later, 6 friends go offline. Five of them continue playing. How many of them were gaming online initially?

Mathematical Equivalence

ON

Rama takes a test at school and completes it in an hour. The test has two sections and she takes 35 minutes to complete the first section. Write an equation to find the amount of time, t, Rama has left to take the second section.

Mathematical Equivalence

ON

Rama takes up a test at school and completes it in an hour. The test has two sections. If she takes 35 minutes to complete the first section, how much time does she have left to complete the second section?

Mathematical Equivalence

ON

Jerem earns $12 per hour at his job. Last week, he made $432. Which equations can be used to determine the number of hours (h) Jerem worked last week? Select each correct answer.

• 432h = 12

• h = 12 ÷ 432

• h = 432 ÷ 12

• 12h = 432

Jerem earns $12 per hour at his job. Last week, he made $432. What is the number of hours Jerem worked last week?

Mathematical Equivalence

ON

Ms. Jaber goes shopping and spends a total of $45.32.  She now has $32.25 left on her gift-card. Which equations can be used to determine how much money Ms. Jaber had on the gift-card before she went shopping? Select each correct answer.

• x = 45.32 - 32.25

• x + 32.25 = 45.32

• x - 45.32 = 32.25

• x = 32.25 + 45.32

• x = 32.25 ÷ 45.32

Ms. Jaber goes shopping and spends a total of $45.32.  She now has $32.25 left on her gift-card. How much money did Ms. Jaber have on the gift-card before she went shopping?

Mathematical Equivalence

ON