Mini Exam 8 — Timed Mini Exams
Practice Mini Exam 8 — Timed Mini Exams on The School of Mathematics (Timed Mini Exams) with 5 scored questions in about 15 min. This set covers problems such as: “The graph of a system of linear equations is shown. What is the solution (x,y) to the system?”; “In the figure, lines m and n are parallel. What is the value of x ?”; “ky-8x=12 5y-4x=9 In the system of linear equations below, k is a constant. If the system has no solution, w…”. Work carefully, check explanations for misses, then retake to track improvement before test day.
Questions in this quiz (5)
The graph of a system of linear equations is shown. What is the solution $$(x,y)$$ to the system?
- $$(-4,1)$$
- $$(0,4)$$
- $$(-2,3)$$
- $$(1,-2)$$
In the figure, lines $$m$$ and $$n$$ are parallel. What is the value of $$x$$?
- $$26^\circ$$
- $$64^\circ$$
- $$84^\circ$$
- $$116^\circ$$
$$ky-8x=12$$$$5y-4x=9$$In the system of linear equations below, $$k$$ is a constant. If the system has no solution, what is the value of $$3k-2$$?
- $$10$$
- $$14$$
- $$28$$
- $$40$$
A chemist needs to mix a $$60\%$$ sugar solution with a $$15\%$$ sugar solution to make $$12$$ liters of a $$35\%$$ sugar solution. How many liters of the $$60\%$$ sugar solution should be used?
- $$\frac{16}{3}$$
- $$16$$
- $$6$$
- $$12$$
A circle has center $$O$$, and points $$P$$ and $$Q$$ lie on the circle. Line segments $$PR$$ and $$QR$$ are tangent to the circle at points $$P$$ and $$Q$$ respectively. If the radius of the circle is $$840$$ millimeters and the perimeter of quadrilateral $$OPRQ$$ is $$3600$$ millimeters, what is the distance, in millimeters, between points $$O$$ and $$R$$?
- $$840$$
- $$120\sqrt{113}$$
- $$1,140$$
- $$1,260$$