Make -up Test: Scaling Proportional Relationships

A store manager selects 30 cartons of eggs and finds 4 cartons that have cracked eggs. If the store has 105 cartons of eggs, how many cartons can she expect to have cracked eggs in them?

• 15 cartons

• 7.5 cartons

• 26 cartons

• 14 cartons

A sample where characteristics accurately reflect those of the larger population from which the sample is being selected.

• Convenience Sample

• Random Sample

• Representative Sample

• Systematic Sample

9. Mrs. Croix is conducting a survey to find out the favorite snack of fifth and sixth graders. She will ask a sample of 100 students. Which of the groups below should be surveyed to get the BEST representative sample?

• A. 20 students from each of the 5 local fifth- and sixth-grade schools.
• B. The first 100 students who go to a local baseball game

If the scale factor is 5, how times larger will the area of the big square be compared to the smaller square?

• 5

• 20

• 25

A rectangle has a base 4 ft and height of 5 feet. If the figure enlarged by a scale factor of 2, what will be true about its area?

• The area is doubled.

• The area is multiplied by 4.

• The area stays the same

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

A building is 360 feet tall. On a scale drawing, 1/4 inch = 10 feet. What is the height of the building in the scale drawing?

• 15 in

• 9 in

• 7 in

• 13 in

A flagpole is 1 in.= 4 ft. If the pole measures 12 inches, how tall is the actual pole?

• 16 feet
• 3 feet
• 48 feet
• 9 feet

Find missing side

• 5
• 7
• 9
• 11

Find the perimeter of the large triangle.

• 24
• 36
• 12
• 54