Timed Mini Exam 36 — Timed Mini Exams

Questions in this quiz (10)

1. A student lives $$2\frac{3}{8}$$ miles from school. Which decimal is equivalent to this distance?

   • $$2.038$$ miles
   • $$2.125$$ miles
   • $$2.375$$ miles
   • $$2.625$$ miles

2. What is the value of $$3x^2-2x-5$$ when $$x=-4$$?

   • $$35$$
   • $$43$$
   • $$51$$
   • $$61$$

3. A retailer reduces the original price of a jacket by $$d\%$$. If the sale price is $$x$$ dollars, which expression represents the jacket's original price?

   • $$\frac{100-d}{100}x$$
   • $$\frac{100x}{100-d}$$
   • $$\frac{x}{d}$$
   • $$\frac{100x}{d}$$

4. A theater sold $$150$$ tickets for a performance. Adult tickets cost $$\$12$$ each, and student tickets cost $$\$7$$ each. The theater collected $$\$1{,}460$$. How many adult and student tickets were sold?

   • $$68$$ adult tickets and $$82$$ student tickets
   • $$70$$ adult tickets and $$80$$ student tickets
   • $$80$$ adult tickets and $$70$$ student tickets
   • $$82$$ adult tickets and $$68$$ student tickets

5. Line $$P$$ crosses the x-axis at $$(-6,0)$$. Line $$Q$$ is represented by:$$y=2x+8$$Which statement about the x-intercepts of the two lines is true?

   • The x-intercept of line $$P$$ is closer to the origin.
   • The x-coordinate of the x-intercept of line $$P$$ is less than that of line $$Q$$.
   • Both x-intercepts are located to the right of the y-axis.
   • The x-intercept of line $$Q$$ cannot be determined.

6. What are all the solutions to the quadratic equation?$$3x^2-4x-8=0$$

   • $$x=\frac{-2\pm2\sqrt{7}}{3}$$
   • $$x=\frac{2\pm2\sqrt{7}}{3}$$
   • $$x=\frac{4\pm\sqrt{7}}{3}$$
   • $$x=\frac{2\pm\sqrt{7}}{6}$$

7. The bar graph shows the number of families in a small town that have one, two, three, four, or five children. What is the mode of the number of children per family?

   • $$1$$ child
   • $$2$$ children
   • $$3$$ children
   • $$4$$ children

8. The surface area of a sphere is $$100\pi$$ square meters. What is the diameter of the sphere?

   • $$5$$ meters
   • $$10$$ meters
   • $$20$$ meters
   • $$25$$ meters

9. A teacher calculates final grades using the following weights:A student earned the following scores:What is the student's final grade?

   • $$87.5\%$$
   • $$88.0\%$$
   • $$88.5\%$$
   • $$90.0\%$$

10. A store offers backpacks in $$5$$ colors, $$2$$ sizes, and $$4$$ strap designs. If one available combination is selected at random, what is the probability that it has one particular strap design?

    • $$\frac{1}{2}$$
    • $$\frac{1}{4}$$
    • $$\frac{1}{8}$$
    • $$\frac{1}{40}$$