Timed Mini Exam 45 — Timed Mini Exams

Questions in this quiz (10)

1. Divide.$$2\frac{3}{5}\div1\frac{1}{4}$$

   • $$1\frac{2}{25}$$
   • $$2\frac{2}{25}$$
   • $$2\frac{3}{20}$$
   • $$3\frac{1}{4}$$

2. Evaluate the expression.$$|-7|-(-3)^2$$

   • $$-16$$
   • $$-2$$
   • $$2$$
   • $$16$$

3. A vehicle uses 18 gallons of fuel to travel 450 miles. At the same rate, how many gallons of fuel will it use to travel 700 miles?

   • 25 gallons
   • 28 gallons
   • 30 gallons
   • 32 gallons

4. $$2(3x-4)+5=21$$Solve the equation for $$x$$.

   • $$x=3$$
   • $$x=4$$
   • $$x=5$$
   • $$x=6$$

5. The table shows corresponding values of $$x$$ and $$y$$.Which equation represents the relationship between $$x$$ and $$y$$?

   • $$y=-3x+2$$
   • $$y=-3x-2$$
   • $$y=3x+2$$
   • $$y=-x+2$$

6. $$2x^2-5x-3=0$$Which values of $$x$$ satisfy the equation?

   • $$x=-3$$ and $$x=\frac{1}{2}$$
   • $$x=-\frac{1}{2}$$ and $$x=3$$
   • $$x=-1$$ and $$x=3$$
   • $$x=\frac{1}{2}$$ and $$x=3$$

7. Approximately what percentage of the books at Everdale Library are biographies?

   • $$10\%$$
   • $$15\%$$
   • $$20\%$$
   • $$23\%$$

8. A cylinder has a diameter of 12 centimeters and a height of 20 centimeters. What is its total surface area?

   • $$120\pi\text{ cm}^2$$
   • $$240\pi\text{ cm}^2$$
   • $$312\pi\text{ cm}^2$$
   • $$720\pi\text{ cm}^2$$

9. A bag contains 5 red marbles, 4 blue marbles, and 3 green marbles. One marble is selected at random. What is the probability that the selected marble is not blue?

   • $$\frac{1}{3}$$
   • $$\frac{1}{2}$$
   • $$\frac{2}{3}$$
   • $$\frac{3}{4}$$

10. The number of science-fiction books at Everdale Library is approximately what fraction of the number of reference books?

    • Twice as many
    • Half as many
    • Three times as many
    • One-third as many