Timed Mini Exam 29 — Timed Mini Exams

Questions in this quiz (10)

1. A family traveled $$2{,}646.8$$ miles during a road trip. Their vehicle averaged $$29.4$$ miles per gallon. Approximately how many gallons of gasoline did the vehicle use?

   • $$82.4$$ gallons
   • $$90$$ gallons
   • $$92.6$$ gallons
   • $$99.4$$ gallons

2. Evaluate the expression:$$-6+(-4)(3-11)$$

   • $$-38$$
   • $$-26$$
   • $$26$$
   • $$38$$

3. A manufacturer finds that approximately $$9$$ out of every $$1{,}500$$ electronic devices are defective. If a store orders $$800$$ devices, approximately how many defective devices should it expect to receive?

   • $$3$$ devices
   • $$5$$ devices
   • $$7$$ devices
   • $$12$$ devices

4. Maya owns $$v$$ video games. Leo owns $$7$$ fewer than three times the number of video games Maya owns. Which expression represents the number of video games Leo owns?

   • $$3(v-7)$$
   • $$3v-7$$
   • $$7v-3$$
   • $$3v+7$$

5. The figure represents the rate of cooling for a particular material after it was placed in a super-cooled bath.If the temperature in degrees Fahrenheit is represented by $$T$$ and the number of hours elapsed is represented by $$H$$, which equation represents a situation in which the rate of cooling is faster than the rate shown in the graph?

   • $$T=-45H+150$$
   • $$T=-60H+300$$
   • $$T=10H+200$$
   • $$T=-30H+250$$

6. Use the quadratic formula to solve:$$2x^2-3x-20=0$$

   • $$4$$ and $$\frac{5}{2}$$
   • $$4$$ and $$-\frac{5}{2}$$
   • $$-4$$ and $$\frac{5}{2}$$
   • $$-4$$ and $$-\frac{5}{2}$$

7. Two randomly selected groups of concert attendees were asked to identify their favorite song. The results are shown in the table.Which conclusion is best supported by the combined survey results?

   • Song $$A$$ would probably be selected most often.
   • Song $$B$$ would probably be selected most often.
   • Song $$C$$ would probably be selected most often.
   • Exactly half of the audience prefers Song $$D$$.

8. An empty cylindrical container has a height of $$7$$ inches and a base radius of $$2.5$$ inches. What is the volume of the container in terms of $$\pi$$?

   • $$17.5\pi$$ cubic inches
   • $$31.25\pi$$ cubic inches
   • $$43.75\pi$$ cubic inches
   • $$87.5\pi$$ cubic inches

9. A restaurant offers $$6$$ soups, $$4$$ entrées, and $$5$$ desserts. How many different meals consisting of one soup, one entrée, and one dessert are possible?

   • $$15$$
   • $$30$$
   • $$60$$
   • $$120$$

10. A rental company charges a fixed fee of $$\$38$$ plus $$\$0.65$$ for each mile driven. If $$m$$ represents the number of miles driven and $$C$$ represents the total cost, which equation represents the rental cost?

    • $$C=38m+0.65$$
    • $$C=0.65m+38$$
    • $$C=38(0.65m)$$
    • $$C=0.65(m+38)$$