Quiz 3: Numbers, Sentences, and Problems

Evaluate prt for p = 10, r = -4 and t = 5.

-200

Solve |x| = 11

{-11, 11}

Solve |3x - 4| = 15

{-11/3, 19/3}

The length of a rectangle is 2 more than twice the width. Find the dimensions of the rectangle if the perimeter is 76. If x represents the width of the rectangle, then which expression represents the perimeter?

6x + 4

Evaluate p 2 - r 2 for p = 10, r = -4 and t = 5.

84

Select the graph that best represents the solution set for |x| < 5

Copy and paste this link in your browser. The image should come up. https://odysseywareacademy.owschools.com/media/g_alg02_2014/2/2106.gif

Select the graph that best represents the solution set for 5x + 1 ≤ 11.

Copy and paste this link in your browser. The image should come up. https://odysseywareacademy.owschools.com/media/g_alg02_2014/2/3017.gif

Is it possible to change $15 into an equal number of half-dollars, quarters, and dimes?

no

The first number of three consecutive even integers equals the sum of the second and third. Find the three numbers. If x represents the smallest integer, then which of the following equations could be used to solve the problem?

x = 2x + 6

Solve the following equation. Then place the correct number in the box provided. 5x - 1 = 24

x=5

Evaluate 10 + 8 ÷ 4 - 12

0

Evaluate 15 + |-3| - 4

14

Evaluate |-10| - |-8|

2

One number is five more than another, and their sum is three less than three times the smaller. Find the numbers. If x represents the smaller number, which equation could be used to solve for x?

2x + 5 = 3x - 3

Evaluate 2p - 3r + t for p = 10, r = -4 and t = 5.

37

In 5 years, Dad will be three times as old as his daughter Jill will be then. If the sum of their present ages is 50, how old are they now? If x + 5 is Jill's age five years from now, which of the following equations could be used to solve the problem?

3x + 15 = 55 - x

Solve |x + 2| = 10

{-12, 8}

Use the three steps to solve the problem. Express the answers using decimals. It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long did he travel each way? (Round answer to nearest tenth.)

{Out 7.2 hrs., back 4.8 hours.}

Solve |2x + 6| < 16

{x| -11 < x < 5}

Solve |x - 1| > 4

{x|x < -3 or x > 5}

Solve |x|<6

{x|x > -6 and x < 6}