STAAR mixed review #1

A scuba diver, who was 25⅔ feet beneath the surface of the water, descended 5½ feet.  From this depth, how many feet must the diver rise to return to the surface?

• 31⅙ ft. 
• 30⅗ ft. 
• 20⅙ ft. 
• 20 ft. 

Ethan can drive his car 130 miles on 4 gallons of gas.  At this rate, how many gallons of gas will Trey need in order to drive 195 miles? 

• 16.25 gal
• 32.5 gal
• 4.5 gal
• 6 gal

Which is NOT a solution of - 3r - 16 ≤ - 1 ?

• r = 3
• r = 0
• r = - 5
• r = - 6

Sammy has a bag with 3 white marbles, 4 yellow marbles, and 5 green marbles.  What is the probability of drawing a white marble followed by a yellow marble, without replacing the white marble? 

• 1/4
• 1/12
• 1/11
• 7/12

There are 64 species of animals in the Metropolitan Zoo.

•3/8 of the species are from North America

•1/16 of the species are from Africa

The remaining species are from South America

How many species are from South America?

• 4

• 24

• 28

• 36

If x = -2, which equation is true?

• 2x = 6 - 2

• x - 5 = 3x + 4

• (x ÷ 4) = (-1 ÷ 2)

• x² + 3 = 6

Which number line represents the solution to the following equation? 6 ≥ 11 - 2x

• F

• G

• H

• J

Remember: This is a triangular prism so the base is a triangle. Use the blue formula chart to calculate the area of the triangle and the volume.

• a
• b
• c
• d

Ann puts $300 in a bank account earning 4% simple interest. How much will she earn in interest in 1 year?

• 4

• 8

• 12

• 16

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25
• Complementary; x=5
• Supplementary; x=25
• Supplementary; x=5