STAAR Mixed Review #3

The price of a sofa is $564 plus 7% tax. What is the sales tax on the sofa in dollars and cents?

• $603.48

• $571

• $39.48

• $46.80

Melanie has a collection 890 of marbles. Of these marbles 25% are blue and 35% are green and the rest are red. How many marbles are color red?

• 40

• 356

• 534

• 60

Karoline gave the cashier $80 to pay for 5 scarfs. The cashier gave her $8.95 in change. Each scarf cost the same amount. What is the cost in dollars and cents for each scarf?

• $14.21

• $71.80

• $15.50

• $16

Grapefruit sell for $3.56 per pound. Which equation best represents c, the cost g pounds of grapefruit.

• c = $3.56 + g

• g = $3.56 + c

• g = $3.56 c

• c = $3.56 g

A recipe calls for 2 cups of sugar to make 5 liters of lemonade. What is the constant of proportionality that relates the number of liters of lemonade made, y, to the number of cups of sugar used, x?

• 10

• 2.5

• 7.5

• 3

What is the solution set for -8x + 1 ≤ -23

• x ≤ 24

• x ≥ -24

• x ≥ 3

• x ≤ -3

The ratio of boys to girls in a Math classroom is 4 to 5. There are 20 boys in classroom . What is the total number of students in the classroom?

• 45

• 25

• 16

• 24

The distance between two cities is 360 kilometers. There are approximately 9 kilometers in 5 miles. Which measurement is closest to the number of miles between these two cities?

• 40

• 200

• 72

• 300

The price of a TV went from $595 to $ 505.75. What was the percent decrease in the price of the TV?

• 89.25%

• 15%

• 10%

• 25%

Nayma made a scale model of the Alamo. The Alamo has an actual height of 25 feet. Nayma’s model used a scale in which 1 inch represents 4 feet. What is the height in inches of Nayma’s model?

• 29 inches

• 4 inches

• 6.25 inches

• 100 inches