Timed Mini Exam 41 — Timed Mini Exams

Questions in this quiz (10)

1. Add the mixed numbers.$$3\frac{1}{4}+2\frac{2}{3}$$

   • $$5\frac{5}{7}$$
   • $$5\frac{7}{12}$$
   • $$5\frac{11}{12}$$
   • $$6\frac{1}{12}$$

2. Simplify the expression.$$\sqrt{50}-\sqrt{8}$$

   • $$7\sqrt{2}$$
   • $$3\sqrt{2}$$
   • $$\sqrt{42}$$
   • $$2\sqrt{2}$$

3. A packaging machine packages 180 items in 12 minutes. At this constant rate, how many items does the machine package per minute?

   • 12 items per minute
   • 15 items per minute
   • 18 items per minute
   • 20 items per minute

4. Solve the equation for $$x$$.$$5(2x-3)=35$$

   • $$x=4$$
   • $$x=5$$
   • $$x=7$$
   • $$x=10$$

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

   • $$y=2x+1$$
   • $$y=3x-1$$
   • $$y=3x+1$$
   • $$y=6x+10$$

6. The function $$f$$ is defined by $$f(x)=3x^2-4x$$. What is $$f(2v)$$?

   • $$6v^2-8v$$
   • $$12v^2-4v$$
   • $$12v^2-8v$$
   • $$36v^2-8v$$

7. The graph shows the rainfall, in inches, received by five towns. What is the mean rainfall for the five towns?

   • 5 inches
   • 7 inches
   • 8 inches
   • 10 inches

8. A circle with radius 1 is inscribed in a square. What is the area of the shaded portion inside the square but outside the circle?

   • $$\pi+1$$
   • $$\pi-1$$
   • $$2-\pi$$
   • $$4-\pi$$

9. A piggy bank contains 4 quarters, 6 pennies, 3 nickels, and 7 dimes. A quarter is selected first and is not returned to the bank. What is the probability that the second coin selected is also a quarter?

   • $$\frac{1}{5}$$
   • $$\frac{3}{19}$$
   • $$\frac{4}{19}$$
   • $$\frac{1}{4}$$

10. $$24,-5,9,13,7,18,10$$What is the median of the following numbers?

    • $$9$$
    • $$10$$
    • $$11$$
    • $$13$$