Algebraic Fractions, Proportions and Probabilty
frac{8c^3d}{9e^2f} -: frac{2c^2}{3ef}
frac {4cd}{3e}
-11x + 2 = -7x + 62
x = -15
-15 + 3(4-5)3 * 2
-21
simpilfy: - ( - ( - ( - 1)3))
1
Name an ordered pair (integers only) which satisfies the following equation:
x2 + y = 6
(2, 2) (0, 6) (-2, 2) (1, 5) (3, -3)
At one store you can buy 24 ounces of pretzels for $4.50. And another store you can buy 30 ounces for $5.99. Which is the better deal?
The 24 ounces for $4.50
-6 - 2x < x + 6
x > -4
5x^2(-2-x)-15x+9x^3
4x^3-10x^2-15x
Name the property:
a + (b + c) = (a + b) + c
Associative Property of Addition
What is the slope of a line parallel to y=-4x + 1?
m = -4
I bought a giant rainbow unicorn for $64. The discount rate was 20 percent. What was the original price?
$80
Solve for y:
4x + 2y = 12
y = -2x + 6
(3x+5y)/2 - (x-y)/2
x + 3y
Janet needs to drain her pool before fall. Her pool currently has a depth of 10 feet, and pool is emptying at a rate of .6 feet per hour. How many hours will it take for the pool to be empty?
x = 16.7 hours
A humidifier has 3 gallons of water after being filled for 20 seconds, and 8 gallons after being filled for 50 seconds. What is the rate of change?
1/6 gallon per second
eanette is pulling out M&Ms from a bag that contains 40 browns, 20 yellows, 10 blue, 8 red and 2 green. What is the probability of pulling out two greens in a row?
1/3160
abs(x+6) = 1
x = -7 or -5
Factor out the greatest term:
35x4y5 - 15x3y8z + 20x6yz2
5x3y(7xy4 - 3y7z + 4x3z2)
2 < 2(x-3) < 10
4 < x < 8
Write the equation of the line that passes through points (-2, 5) and has an undefined slope.
x = -2
frac{x + 4}{8 }=frac{x - 1}{9}
x = -44
abs(x - 4) < 2
x < 6 or x > 2
Simplify if x = -1
-x^2 - 18 + 2x^2
-17
The perimeter of a rectangle is 62 inches. The length is 4 inches longer than the width. Find the dimensions of the rectangle.
w = 13.5 l = 17.5
What is an equation of a line that is perpendicular to one that goes through (4, 2) and (3, 6).
sample answer:
y = 1/4 x + 1