Timed Mini Exam 52 — Timed Mini Exams

Questions in this quiz (10)

1. During a $$30$$-day month, rain was recorded on $$8$$ days, snow was recorded on $$5$$ days, and some other form of precipitation was recorded on $$2$$ additional days. What is the ratio of the number of days with precipitation to the total number of days in the month?

   • $$2:3$$
   • $$1:3$$
   • $$1:2$$
   • $$3:4$$

2. Amir saves $$1$$ dollar out of every $$10$$ dollars he earns. If he earns $$850$$ dollars in one week, how much does he save?

   • $$85$$ dollars
   • $$80$$ dollars
   • $$90$$ dollars
   • $$95$$ dollars

3. An advertisement claims that a new connection can transfer data up to $$2400\%$$ faster. Which value is equivalent to $$2400\%$$?

   • $$2.4$$ times
   • $$240$$ times
   • $$2400$$ times
   • $$24$$ times

4. In a recent year, the total value of electronic devices sold was approximately $$22$$ billion dollars. Of this amount, $$18\%$$ was spent on devices for children. What was the approximate value of the devices purchased for children?

   • About $$2$$ billion dollars
   • About $$4$$ billion dollars
   • About $$6$$ billion dollars
   • About $$8$$ billion dollars

5. Which expression represents the total weight, in pounds, of $$4$$ cans of food when each can weighs $$5$$ ounces?

   • $$\frac{16}{4(5)}$$ pounds
   • $$\frac{4(16)}{5}$$ pounds
   • $$\frac{4(5)}{16}$$ pounds
   • $$\frac{5(16)}{4}$$ pounds

6. A driver is traveling between two cities that are $$360$$ miles apart. The driver stops after traveling $$315$$ miles. Approximately what fraction of the trip has the driver completed?

   • $$\frac{7}{8}$$
   • $$\frac{3}{4}$$
   • $$\frac{2}{3}$$
   • $$\frac{9}{10}$$

7. The illustration shows a triangular hotplate made of white and blue tiles. What is the probability of a fly landing on one of the white tiles?

   • $$\frac{5}{8}$$
   • $$\frac{3}{8}$$
   • $$\frac{7}{8}$$
   • $$\frac{1}{6}$$

8. One cubic foot measures $$12$$ inches on each side, and one cubic inch measures $$1$$ inch on each side. One cubic inch is what fraction of one cubic foot?

   • $$\frac{1}{12}$$
   • $$\frac{1}{144}$$
   • $$\frac{1}{288}$$
   • $$\frac{1}{1728}$$

9. The formula $$c=nr$$ represents the cost of $$n$$ items when each item has a price of $$r$$ dollars. Which equation represents the total cost, including an $$8\%$$ sales tax?

   • $$c=0.08nr$$
   • $$c=0.92nr$$
   • $$c=1.08nr$$
   • $$c=8nr$$

10. Which values are the solutions to $$x^2+7x-30=0$$?

    • $$x=3$$ and $$x=-10$$
    • $$x=-3$$ and $$x=10$$
    • $$x=5$$ and $$x=-6$$
    • $$x=-5$$ and $$x=6$$