Quiz about Chapter 4 Spiral Review

Question 1

Find the slope of the line that passes through the pair of points

$$\left(2,\ 3\right)\ \ and\ \ \ \left(9,\ 7\right)$$

Accepted Answer

$$\frac{4}{7}$$

Answer

1

Answer

$$\frac{7}{4}$$

Answer

$$\frac{5}{6}$$

Question 2

A music store has x CDs in stock. If 350 are sold and 3y are added to the stock, which expression represents the number of CDs in stock?

Accepted Answer

x - 350 + 3y

Answer

x + 350 - 3y

Answer

x - 350 - 3y

Answer

x + 350 + 3y

Question 3

A recipe for fruit punch calls for 2 ounces of orange juice for every 8 ounces of lemonade. If Jennifer uses 64 ounces of lemonade, which proportion can she use to find x, the number of ounces of orange juice needed?

Accepted Answer

$$\frac{x}{64}=\frac{2}{8}$$

Answer

$$\frac{x}{8}=\frac{64}{2}$$

Answer

$$\frac{64}{2}=\frac{x}{8}$$

Answer

$$\frac{x}{8}=\frac{2}{64}$$

Question 4

Solve the equation:

$$-5x-2.2=-2.9$$

Accepted Answer

x = 0.14

Answer

x = 1.02

Answer

x = -0.14

Answer

x = -1.02

Question 5

Solve the following equation:
$$-14-\frac{n}{9}=9$$

Accepted Answer

n = -207

Answer

-45

Answer

45

Answer

n = 207

Question 6

$$9.5x+11-7.5x=14$$

Accepted Answer

x = 1.5

Answer

x = 3/17

Answer

x = -1.5

Answer

x = 25/17

Question 7

Roberto receives an employee discount of 12%. If he buys a $355 item at the store, what is his discount to the nearest dollar?

Accepted Answer

$43

Answer

$20

Answer

$3

Answer

$4

Question 8

In a class of 25 students, 6 have blue eyes, 15 have brown hair, and 3 have blue eyes and brown hair. How many students have neither blue eyes nor brown hair?

Accepted Answer

7

Answer

4

Answer

10

Answer

22

Question 9

Find the x- and y- intercepts:

$$2x-y=-4$$

Accepted Answer

x-intercept: -2, y-intercept: 4

Answer

x-intercept: 2, y-intercept: -4.

Answer

x-intercept: -4, y-intercept: 2.

Answer

x-intercept: 0, y-intercept: -2.

Question 10

Mrs. Aguilar's rectangular bedroom measures 13 feet by 11 feet. She wants to purchase carpet for the bedroom that costs $2.95 per square foot, including tax. How much will the carpet cost?

Accepted Answer

$421.85

Answer

$70.80

Answer

$141.60

Answer

$143.00

Question 11

Solve:

$$\left|6m-3\right|=9$$

Accepted Answer

{-1, 2}

Answer

{2}

Answer

{-3, 6}

Answer

{-2, 2}

Question 12

Solve:

$$\frac{6r-7}{10}=\frac{r}{4}$$

Accepted Answer

r=2

Answer

r=-2

Answer

r= $$\frac{3}{14}$$

Answer

r= $$\frac{1}{2}$$

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics