Alg Chapter 1 Equations

1/2 step equations

100

x + 3.4 = 9.1

x = 5.7

200

p-1/3=2/3

p = 1

300

2/3r=16

r = 24

400

-15=-3/5n

n = 25

500

The product of 8 and n is 24. What is the value of n?

n = 3

multi-step equations/variable on both sides

100

7/9=2n+1/9

n = 1/3

200

-2(b+5)=-6

b = -2

300

15x-10=-9x+2

x = 1/2

400

2(3b-4)=8b-11

b = 1.5

500

Janice has job offers at 2 companies. One is $44,000 with a raise of $5,000 each year. The other has a starting salary of $56,000 with a raise of $3,000 each year. After how many years would they be the same?

6 years

Absolute value/solve for a variable

100

5+|x|=14

x = 9

x = -9

200

3|x|=24

x = 8 and -8

300

|x-3|+3=2

No solution

400

5h - g = jk Solve for h

h=(jk+g)/5

500

(m+3)/n=p

n=(m+3)/p

Rates, Ratios, Proportions

100

x/20=2/8

x = 5

200

4/4=(a+5)/21

a = 16

300

Dan is 5ft tall and casts a shadow of 2ft. At the same time, a tree casts a shadow of 10ft. How tall is the tree?

25 feet tall

400

ABC ~ DEF

AB = 2ft      AC = 8ft

DF = x        DE = 5ft

x = 20 ft

500

Every dimension of a 3cm by 4cm rectangle is doubled. What is the ratio of the perimeters?

1/2

Miscellaneous

100

What's more precise?

6ft or 72.3 in

72.3 in

200

When is the test?

Tomorrow

Tuesday, September 28th, 2021

300

4b-10=8b+14

b = -6

400

Solve for n

S=180n-360

n=(S+360)/180

500

6-2x-1=4x+8-6x-3

All real numbers