7th grade Unit 3 Ratios and Proportions Post Test 7PAR4

7.PAR4.1 Crystal went grocery shopping with her mother at Walmart. She wanted to buy a package of Sour Patch Kids. Which package of Sour Patch Kids is the best deal?

• Small Bag

• Box

• Medium Bag

• Large Bag

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7.PAR4.1

7.PAR4.2 The graph below shows the number of cases of candy bars four students sold for a fund raiser and the total number of candy bars in those cases. How many candy bars are in each case?

• 50

• 30

• 25

• 10

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7.PAR4.2

7.PAR.4.5 The graph shows the distance traveled by a model train going around a track. What can be concluded from the point (1,2) on the graph?

• The distance traveled by the train increases at a rate of 2 feet per second.

• The distance traveled by the train increases at a rate of 1 to 2 foot per second.

• The distance traveled by the train increases from 1 foot to 2 feet in 1 second.

• The distance traveled by the train increases from 1 foot to 2 feet in 2 seconds.

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7.PAR4.5

7.PAR.4.6 The actual width of the building shown in the model below is 60 feet: What is the actual height of the building shown in the model?

• 100 ft

• 150 ft

• 210 ft

• 300 ft

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7.PAR4.6

7.PAR.4.7: The coordinate plane shows two right triangles that have hypotenuses on the same line. Which of the following can be used to justify why the slopes are the same?

• The right triangles are congruent.

• Corresponding parts of congruent triangles are congruent.

• Corresponding parts of similar triangles are congruent.

• The right triangles are similar.

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7.PAR4.7

7.PAR.4.8: Kylie compared the price per pound of two types of apples at her grocery store. She used the equation y = 0.85x to represent y, the total cost in dollars of x pounds of apple A. She entered into the table below the cost of some weights of apple B. What is the difference in the price per pound between apple A and apple B?

• $0.40

• $0.85

• $1.25

• $2.10

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7.PAR4.8

7.PAR.4.9: A pair of shoes that normally sells for $85.00 goes on sale for 35% off. Sean thinks that the sale price should be $50.00 but Melissa disagrees and says the price should be $55.25. Jimmy does not agree and thinks the price should be $84.65. Aiyanna says they are all wrong and decides the price should be $29.75. Who is correct in their thinking?

• Sean

• Melissa

• Jimmy

• Aiyanna

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7.PAR4.9

7.PAR.4.4 A snack food company wants to find out the opinions of middle school students in a community about its products. Which method produces the most representative sample for the survey?

• Mail the surveys to all the homes within ten blocks of the schools in the community.

• Set up a booth at a local store where the snacks are sold and interview students who come into the store.

• Obtain a list of all students from the schools and randomly choose 200 students to interview.

• Send text messages to all cell phone numbers in the community that end in a 5.

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7.PAR4.4

7.PAR.4.12 Each student in Mrs. Halstead's class was assigned a random group of 10 seventh graders. They asked everyone in each group the following question: "Do you prefer vanilla or chocolate ice cream?" The results of some of the students' findings are shown below. Marcy's group: 4 vanilla and 6 chocolate ice cream Owen's group: 3 vanilla and 7 chocolate ice cream Steve's group: 1 vanilla and 9 chocolate ice cream Vivian's group: 2 vanilla and 8 chocolate ice cream When the class combined all of the results, they found that 110 seventh graders preferred vanilla and 190 preferred chocolate ice cream. Which student's results were closest to the class results?

• Marcy

• Owen

• Steve

• Vivian

7.PAR.4.4 At a grocery store, it costs $5.00 to buy 4 pounds of apples. Part A. Complete the table below to show the costs for other amounts of apples at the same rate. You can list the values in the table as ordered pairs.