Finding perfect of change
Solving Linear Equations
Using Cramer’s Rule
Solving Inequalities with Absolute Value
Random
100

What is the new amount when 58 is decreased by 70%?

17.4

100

Solve -5x + 12 = -23

X = 7

100

Solve 3x+2y=-1 

         4x-3y=10

X = 1 y = -2

100

|x-6| = 4

X = 2, X = 10

100

Solve -2(X + 3) < -2x +1

-6 < 1

200

A hiking backpack that regularly costs $98 is being offered at a 15% discount. Find the sale price of the backpack.

$83.30

200

Solve 2n - 3 = 6n + 25

n = -7

200

Solve 3x+2y=5

         3x+2y=8

undefined

200

|2x+4| - 5 = 1

X = 1, X = -5

200

Change 600 inches to feet

50 ft

300

A store owner boys candles from a local candle maker at $3.15 each and sells them at a 400% markup. How much does the store owner self each candle for?

$15.75

300

Solve 12(r + 3) = 2(r + 5) - 3r

r = -2

300

Solve 3x+2y=5

         6x+4y=10

infinite number of solutions

300

|3x+18| = 6x

X = 6, X = -2

300

(2x - 3)(3x + 2)

6x2 - 5x - 6

400

What is the new amount when 620 is increased by 350%?

2790

400

Solve 1/2x + 4 = -2/3x + 1/2

X = -3

400

Solve -3x + 4y =8

          X + 4y = 4

X = -1, y = 5/4

400

|2x - 5| > 9

X<-2 or X>7

400

Solve 2y - X = -6 & y - 2x = 1 by substitution

(-8/3, -13/3)

500

The pop of Indiana in 1990 was reported to be 5,544,159 and in 2000 was reported to be 6,080,485. Find the percent increase. 

9.67%

500

X + 623,908 + 635,867 = 1,774,779

X = 515,004

500

A contractor is replacing the title in two bathrooms. For one bathroom, she purchased 416 tiles and 256 tiles at a cost of $233.60. For the other bathroom, she purchased 400 tiles and 512 tiles at a cost of $251.20.

0.5, 0.1

500

For hydrogen to be a liquid, it must be within 2 degrees of -257 degrees Celsius. Write an absolute value equation to determine the least and greatest temperature.

Least: -259 degrees Celsius; greatest: -255 degrees celcius

500

Find the range & standard deviation of 5,7,12,14,17

11; 4.4