Quiz about Review T2: SOLVING LINEAR EQUATIONS AND INEQUALITIES

Question 1

The equation d = rt gives the distance, d, for the rate, r, and time, t. Which shows the equation solved for time?

Accepted Answer

$$t=\frac{d}{r}$$

Answer

$$t=\frac{r}{d}$$

Answer

$$t=dr$$

Answer

$$t=d−r$$

Question 2

Rewrite the equation 6 = 9(x + 3) using the Distributive Property.

Accepted Answer

$$6=9x+27$$

Answer

$$6=9x+12$$

Answer

$$6=9x+93$$

Answer

6 = 3x + 27

Question 3

The equation $$A=\pi r^2$$ gives the area, A, of a circle with radius r. Solve the equation for $$\pi$$

Accepted Answer

$$\pi=\frac{A}{r^2}$$

Answer

$$\pi=\frac{r^2}{A}$$

Answer

$$\pi=\frac{A}{2r}$$

Answer

$$\pi=\sqrt[]{\frac{A}{r}}$$

Question 4

Alex saved $65. He has already spent $25. He plans to spend $8 on a movie ticket each month. Which inequality represents the number of movie tickets he can buy?

Accepted Answer

$$8t+25\le65$$

Answer

$$8t−25\le65$$

Answer

$$−8t+25\le65$$

Answer

$$−8t−25\le65$$

Question 5

What is the solution to the inequality $$−4(x+1)\ge12$$ ?

Accepted Answer

$$x\le-4$$

Answer

$$x\le4$$

Answer

$$x\ge-4$$

Answer

$$x\ge4$$

Question 6

Which graph shows the solution to the inequality $$-\frac{7}{12}x\ >3$$ ?

Accepted Answer

Question 7

Solve the equation $$5(x+1)=3x−9$$

Accepted Answer

-7

Answer

2

Answer

7

Answer

-2

Question 8

Solve the equation: $$2x+7=3x+5−x$$

Accepted Answer

No solution

Answer

Infinite solutions

Answer

3

Answer

-3

Question 9

Solve the formula $$C=2\pi r$$ for r

Accepted Answer

$$\frac{C}{2\pi}=r$$

Answer

$$\frac{2C}{\pi}=r$$

Answer

$$2C\pi=r$$

Answer

$$\frac{C}{2\pi r}=r$$

Question 10

Which equations have no solution?

Accepted Answer

$$24x−22=−4(1−6x)$$

Accepted Answer

$$15−3x=5(x+4)−8x$$

Accepted Answer

$$2(x−7)=2x−10$$

Answer

$$−2−2x=6(2x+2)$$

Question 11

Rewrite this equation as slope-intercept form 12x + 4y = 480?

Accepted Answer

$$y=−3x+120$$

Answer

$$y=120−12x$$

Answer

$$y=476−12x$$

Answer

Review T2: SOLVING LINEAR EQUATIONS AND INEQUALITIES

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