STAAR Mixed Review #2

A recipe says to use 5 cups of flour to make 60 gingerbread cookies. What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of flour used, x ?

• 12

• 65

• 55

• 15

Tamales costs $7.25 dozen. Which equation best represents y, the total cost of x dozens of tamales?

• x = 7.25 + y

• x = 7.25y

• y = 7.25 + x

• y = 7.25x

Carlos surveyed 80 classmates about their favorite color. Each classmate chose one color. The results are shown in the circle graph.

How many more of Carlos’ classmates chose green than chose pink?

• 16

• 48

• 20

• 32

The ratio of boys to girls in Mrs. Monte’s class is 2 to 5. There are 15 girls in the class. What is the total number of students in Mrs. Monte’s class?

• 6

• 21

• 3

• 10

Miguel has 150 candy apples to sell. Each candy apple is classified with a different color.

1/ 5 of the candy apples are red apples.

1/3 of the candy apples are yellow apples.

3/10 of the candy apples are green apples.

The rest are dark red apples.

How many candy apples are dark red?

• 30

• 50

• 25

• 45

The distance between two towns is 160 kilometers. There are approximately 5 kilometers in 12 miles. Which measurement is closest to the number of miles between these two towns?

• 32

• 384

• 13

• 60

The price of a TV is $245.00 plus 8% sales tax. What is the sales tax on this DVD in dollars and cents?

• $245.80

• $30.62

• $19.60

• $19.75

A bird is flying at a constant rate toward the clouds. The equation y = 8x + 3 can be used to represent this situation, where y is the altitude of the bird in meters up in the sky and x is the number of seconds the bird has been flying.

Which statement best describes the altitude of the bird, given this equation?

• From a starting position of 3 meters up in the sky, the bird is descending 8 meters per second.

• From a starting position of 8 meters up in the sky, the bird is descending 3 meters per second.

• From a starting position of 3 meters up in the sky, the bird is ascending 8 meters per second.

• From a starting position of 8 meters up in the sky, the bird is ascending 3 meters per second.

Rene has a collection of 200 video games. Of these games, 35% are dated before 2015, 45% are dated from 2016, and the rest are dated after 2018. How many games in Rene’s collection are dated 2018?

• 20

• 80

• 160

• 40

A group of students formed a circle during a pep rally. The circumference of the circle was about 37.68 feet, and the diameter of the circle was 12 feet. Which expression best represents the value of $\pi$ ?

• 37.68 / 12

• 12 / 37.68

• 37.68 / 6

• 6 / 37.68