Timed Mini Exam 34 — Timed Mini Exams

Questions in this quiz (10)

1. A teacher is purchasing modeling clay for an art activity. There are $$28$$ students, and each student needs $$0.62$$ pound of clay. About how many pounds of clay should the teacher purchase?

   • 12 pounds
   • 18 pounds
   • 28 pounds
   • 45 pounds

2. Which expression represents $$0.0000472$$ in scientific notation?

   • $$4.72\times10^{-5}$$
   • $$4.72\times10^{-4}$$
   • $$47.2\times10^{-5}$$
   • $$4.72\times10^{5}$$

3. A bakery uses $$4\frac{1}{2}$$ cups of flour to make $$30$$ muffins. At the same rate, how many cups of flour are needed to make $$80$$ muffins?

   • $$7\frac{1}{2}$$ cups
   • $$10$$ cups
   • $$12$$ cups
   • $$14\frac{1}{2}$$ cups

4. Which inequality represents the solution to:$$5x-7\ge3x+9$$

   • $$x\ge8$$
   • $$x\le8$$
   • $$x\ge1$$
   • $$x\le1$$

5. Which equation represents a line parallel to:$$y=-\frac{3}{4}x+2$$

   • $$3x+4y=28$$
   • $$4x+3y=18$$
   • $$3x-4y=12$$
   • $$4x-3y=24$$

6. Suppose:$$x^2-13x+40=(x+m)(x+n)$$If $$m$$ > $$n$$, what is the value of $$m-n$$?

   • $$3$$
   • $$-3$$
   • $$13$$
   • $$40$$

7. On average, how many more children did households have in the first Dexter generation than in the current Dexter generation?

   • $$6$$
   • $$7$$
   • $$8$$
   • $$10$$

8. A local arboretum plans to build a bridge across a pond. The measurements of the perpendicular walkways surrounding the pond are shown in the figure.Which expression represents the length of the proposed bridge?

   • $$\sqrt{150^2-60^2}$$
   • $$150^2+60^2$$
   • $$150+60$$
   • $$\sqrt{150^2+60^2}$$

9. The following table shows the ages of the guests attending a community banquet:What is the probability that a randomly selected guest is older than $$40$$?

   • $$\frac{1}{10}$$
   • $$\frac{1}{5}$$
   • $$\frac{3}{10}$$
   • $$\frac{1}{2}$$

10. Determine which tables represent $$y$$ as a function of $$x$$.

    • Tables A and C