2.1-2.4 Algebra 1 Review

One-step Equations

100

x-12=15

27

200

21= 2x+6

15/2

300

97=4n+25

18

400

Write out the equation and solve. A number multiplied by 12 is 60. Find the number.

12n=60

n=5

500

6.8x+4.7= -8.22

-1.9

Multi-step Equations

100

2x+5= x-2

-7

200

3(x+1) - (x-2)= 13

4

300

3(x-4)= 4(x-6)

12

400

3(4x-5)+2 = 2(6x+3)

no solution

500

8-(x-4) = -2(x-6) + x

identity

Literal Equations

100

solve for F = WH/L, for H

H= LF/W

200

ax-5b = 7x +18b for x

x = 23b/a-7

300

amx= 3a for x

x= 3/m

400

2y-3x= ay-2x for y

y= x/2-a

500

ax+b+a(x+b) = b for x

x= -b/2

Ratios/Proportions

100

A school of 312 students has 168 girls and 20 teachers. Find the ratio of girls to students.

168/312

200

28 ft to yards

9.3 yard 

300

7/8 = x/4

28/8 or 3.5

400

$27.50 for 11 gal of gas. Find the unit rate.

$2.50 per gal

500

A random survey of 30 students found that 17 played a musical instrument. If the school has 450 students, predict how many do NOT play an instrument.

195 students.

Miscellaneous

100

What is the capital of Florida?

Tallahassee

200

What is the world's hottest chilli pepper?

Carolina Reaper

300

What is the only bird that can fly backward?

Hummingbirds

400

What is the main profession of Nintendo character Luigi?

Plumber

500

What is the national animal of Scotland?

Unicorn