Bdale 2nd tri

Absolute value

100

|x | = 6

{6, -6}

200

|x + 1| = 6

{5, -6}

300

|2x + 5| =11

{-8, 3}

400

3|x-4| + 1 =19

{ -2, 10}

500

-4|2w + 6| = -32

{-7,1}

Literal Equations

100

Solve for t:

I=prt

I/pr =t

200

V =∏r²h       Solve for h:

V/∏ r²= h

300

Solve for a:

w = 7a + 4b

a= w-4b/ 7

400

Solve for y:

Ax + By = C

y= C-Ax/ B

500

Solve for p:

r=4/3 (p-q)

p=3/4 r + q

Proportions

100

2/9 = 4/x + 8

x = 10

200

6/ y-5 = 18/ y+1

y = 8

300

5/ y-7 =3/ y-5

y = 2

400

6/2n-5 = 2/n-7

n=16

500

What do you especially need to remember about solving proportions?

Cross multiply, distribute and solve for the variable.

Measurement

100

1 kilogram = __________grams

1,000 grams

200

How many ounces in a pint?

16 oz.

300

How many feet in a mile?

5280 feet

400

How many ounces in 9 lbs?

144 oz.

500

How centigrams in  3.2 kilograms?

320,000 centigrams

Equations

100

-12x + 8 + 5x = 36

x = -4

200

8k - (6k-4) = 10

x = 3

300

-2y + 4 = 8y - 6

y = 1

400

13w-2(4w+1) = w-58

w =-14

500

3h-2(4h-5) = 10 - 5h

     ∞