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Open Up - Grade 7 - Mathematics - Unit 6 - Lesson 17

Last updated 9 months ago
12 questions
1

28 students travel on a field trip. They bring a van that can seat 12 students. Elena and Kiran’s teacher asks parents to drive cars that seat 3 children each to transport the rest of the students.

Elena wonders if she should use the inequality 12 + 3n > 28 or 12 + 3n \geq 28 to figure out how many cars are needed. Kiran doesn’t think it matters in this case.
Do you agree with Kiran?

1

In the cafeteria, there is one large 10-seat table and many smaller 4-seat tables. There are enough tables to fit 200 students.

Write an inequality whose solution is the possible number of 4-seat tables in the cafeteria.

1

5 barrels catch rainwater in the schoolyard. Four barrels are the same size, and the fifth barrel holds 10 liters of water. Combined, the 5 barrels can hold at least 200 liters of water.

Write an inequality whose solution is the possible size of each of the 4 barrels.

1

How are the problems in question 2 and 3 similar? How are they different?

1

Solve each equation.

1

Solve each equation.

1

Solve each equation.

1

Solve each equation.

1

Solve each equation.

1

Select all the inequalities that have the same graph as x < 4.

1

A 200 pound person weighs 33 pounds on the moon.

How much did the person’s weight decrease?

1

A 200 pound person weighs 33 pounds on the moon.

By what percentage did the person’s weight decrease?(Round to the nearest whole percent)

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