Chapter 2 Review: Linear Equations

Solve Equations

100

The sum of five times a number x and three is the same as 15.

x = 2.4 or 12/5

200

Three times b less that 100 is equal to the product of 6 and b.

b = 100/9 or 11.11

300

(c+1)/-3 = -21

62

400

2(4r+6) = (2/3)(12r+18)

All real numbers

500

5[2p-4(p+5)]=25

-12.5

Absolute Value

100

|-4|

4

200

|n-3|=5

{8, -2}

300

|6y-7|=-1

No solution

400

2|h|-3=8

{5.5, -5.5}

500

4-3|p|=10

No solution

Consecutive Integers

100

Find 3 consecutive integers with a sum of 21.

6,7,8

200

Find 3 consecutive odd integers with a sum of 57.

17, 19, 21

300

Find 3 consecutive integers with a sum of -36.

-13, - 12, -11

400

Find four consecutive integers with sum of -142.

-37, -36, -35, -34

500

Find 2 consecutive even integers whose sum is 126.

62, 64

Ratios/Proportions

100

Are these ratios proportional? 4:3, 6:8

No

200

Solve: 15:35 = g:7

g=3

300

7:1.066 = z:9.65

z=63.37

400

7:4 = f-4:8

f=18

500

2n-4:5 = 3n+3:10

n=11

Grab Bag

100

Find the percent of change - Original: 9.8, New: 12.1

23.5% increase

200

7h+f=2h+g, solve for g

5h+f=g

300

On a map of NC, Raleigh and Asheville are about 8 inches apart. If the scale is 1 inch = 12 miles, how far apart of the cities?

About 96 miles.

400

A limo costs $85 to rent for 3 hours plus a 7% sales tax. What is the total cost to rent a limo for 6 hours?

$181.90

500

A car travels a distance of 100 feet in about 2.8 seconds. What is the velocity of the car in miles per hour? Round to the nearest whole number.

24 mph