Proportions Review

Figure ABCD is similar to figure WXYZ. Which proportion must be true for these figures?

Micah made a scale model of the Empire State Building. The building has an actual height of 381 meters. Micah's model used a scale in which 1 cm represents 50 meters. What is the height in centimeters of Micah's model?

Mathematical Equivalence

OFF

Tags

CCSS.7.RP.A.2C

The triangles shown below are similar. Which line segment corresponds to RS?

• RT

• TS

• OS

• UT

Trapezoid FGHI is similar to trapezoid KLMN. What is the length of GH?

• 8.5 in

• 7 in

• 6.75 in

• 5.5 in

The rectangle below is dilated by a scale factor of 3.6 to create a new rectangle. Which of the following could be the dimensions of the new rectangle?

• 14.4 cm x 5.4 cm

• 5.4 cm x 7.2 cm

• 7.2 cm x 1.8 cm

• 14.4 cm x 7.2 cm

Todd plans to swim 18 laps in the pool. Each lap is 50 yards. So far Todd has swam 738 yards. What percent of the total has Todd completed?

• 18%

• 82%

• 62%

• 77%

Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. When her parents visit she makes 100 fluid ounces of coffee. How many grams of coffee beans must she use?

Mathematical Equivalence

ON

Tags

CCSS.6.RP.A.3B

The price of an Apple Ipad was increased from $180 to $207. By what percentage was the price of the tablet increased?

• 33%

• 8%

• 27%

• 15%

Tags

CCSS.6.RP.A.3C

Edgar pays $67.86 for 7.8 pounds of fertilizer. What is the price per pound of fertilizer?

• $6.98

• $5.65

• $8.70

• $10.26

Tags

CCSS.6.NS.B.3

Below is data collected from a random sample of 80 students regarding their fitness habits. If the entire school has 600 students, then what is a reasonable estimate for the number of students who consider themselves to have an average fitness habit?

• 175

• 120

• 280

• 330