CAASPP Practice Participation Math 8

Front

Back

n = 14

Front

Identify the correct slope and interpretation for the proportional relationship between distance traveled by Tim and travel time.

Back

Front

Sally is solving the linear equation: 13 + 4x - 9 = 7x + 7 - 3x. Her final two steps are: 4 + 4x = 4x + 7 and 4 = 7. Select the statement that correctly interprets Sally's solution.

Back

There is no solution since 4 = 7 is a false statement.

Front

Equation to find how many days it will take David, Karen, and Rick to read 10,000 pages together by the end of summer.

Back

245d = 10,000

Front

Marco claims that the interior angles of a hexagon add up to 360° because it can be divided into two triangles. Which statement explains Marco's error?

Back

A hexagon can be divided into 4 triangles, not 2.

Front

What must be the value of c for ax + b = a(x + c) to be true?

Back

b/a

Front

A biologist tracks the number of bacteria living in a water tank. The biologist used a function that represents the amount of a certain chemical solution that is added to the water.

• - When the water has no chemicals, the number of bacteria (b) is 1200 per gallon
• - For each tablespoon of the chemical solution (c) added to each gallon of water, the number of bacteria decreases by 75 per gallon.

How much of the chemical, in tablespoons, must be added to a 500-gallon tank to reduce the bacteria count to a safe 300 bacteria per gallon?

Back

6,000 tablespoons