PAA Unit 3 Review

Which of the following could have x = 3 as a solution?

Which equation does not have x = 5 as its solution?

Which real world problem is modeled by the equation 3x + 9 = 21?

• Jimmy started with three points and now earns 9 points each day. He had a total of 21 points at the end of the unit. How many days did he earn points?

• Lisa spent $21 at the store. She bought $3 worth of snacks and some apples for $0.50 each. How many apples did Lisa purchase at the store?

• Randy is purchasing a notebook for $9. He also buys 3 pens. If he spent $21, how much is each pen?

• Tommy ran 21 miles last week. This week, he ran 3 miles each day. How many days does Tommy need to practice this week to run an equal amount of miles?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Barney went to the roller skating rink on Saturday afternoon.

• He had a total of $34 in his pocket

• The skate tickets cost $8 each.

• Barney also rented skates for $2.

Which inequality can be used to determine how many tickets Barney can buy?

Write an inequality for the following. Do not solve.

The product of a number, x, and five is no more than 22

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

ON