KPrep Review-Unit 4 Ready Classroom

Which expression is equivalent to 6 ( 3c - 4) - 2 ( 5c - 1)?

• 8c - 5

• 8c - 26

• 8c - 22

• 8c - 2

The length of each of the legs of an isosceles triangle is represented by the expression 5x - 2.

The length of the base of the isosceles triangle is represented by the expression 3x + 1.

The perimeter of the isosceles triangle is 42 inches.

Determine which equations represent the perimeter of the isosceles triangle.

• 13x - 3 = 42

• (10x - 2) + (3x + 1) = 42

• 2(5x - 2) = 2(3x + 1) = 42

• 5x - 2 + 3x + 1 +5x - 2 = 42

Mr. Fox organizes a field trip to a museum. He ordered 52 student tickets and 2 adult tickets. The cost of a student ticket is s and the cost of an adult ticket is a.

What does the expression 52s + 2a represent?

• the total cost of all the tickets Mr. Fox buys

• the total number of people visiting the museum

• the total cost of 1 student and 1 adult ticket

• the total number of tickets Mr. Fox buys

Select the expressions that are equivalent.

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• 
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A shopper purchases apples, bananas, and grapes. The weight of the bananas is 1 lb. less than the weight of the apples. The weight of the grapes is 1 lb. less than the weight of the bananas. The total weight of the apples, bananas, and grapes is 9.6 lb.

What is the weight of the apples, in pounds?

• 4.2 lb

• 3.2 ib

• 2.2 lb

• 7.6 lb.

The sum of two numbers is 400. The smaller number is 100 less than the larger number, n.

What is the value of n?

• 150

• 200

• 250

• 300

Sasha does push-ups each day for 5 days. The number of push-ups she does each day are: 22, 26, 21, 25, 27. Sasha wants her average number of push-ups per day for 6 days to be above 25. How many push-ups does she needs to do on the sixth day?

• n < 4

• n < 29

• n > 4

• n > 29

Determine whether each pair of expressions is equivalent.

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A farmer pays $50 to rent a booth at a famers market. She is selling watermelons for $8 each. At the end of the day, she wants to have earned at least $200 after she pays to rent the booth. How many watermelons does the farmer need to sell?

• at lease 31

• at least 32

• at most 31

• at most 32

The cost of movie tickets for a group of friends is $24. They buy 3 snacks. The cost of each snack is the same. The group spends $43.50 total for tickets and snacks. How much does each snack cost?

• $19.50

• $6.50

• $30

• $14.50