Common Difference or Ratio
Equation Solving
Operations on Fractions
Absolute Value Equations
Pythagoras and Area
100
-6, 1, 8, 15, 22...
d = 7
100
3x + 5 = 17
x = 4
100
(-3/2)(-3/7) = x
x = 9/14
100
abs(a/5) = 5
a = 25, -25
100
Find the length of the missing side c (to the nearest tenth) when a = 13.1 and b = 13.9.
c = 19.1
200
1, 3, 9, 27, 81...
r = 3
200
-4x - 2 = 18
x = -5
200
(2)(-1/3) = y
y = -2/3
200
abs(n/6) = 4
n = 24, -24
200
Find the length of the missing side c (to the nearest tenth) when a = 4.5 and b = 6.6.
c = 8
300
64, -32, 16, -8, 4...
r = -1/2
300
2(9x/4) = 36
x = 8
300
1 5/8 - (-3 1/2) = z
z = 41/8
300
abs(x+2) = 10
x = 8, -12
300
Find the length of the missing side b (to the nearest tenth) when a = 6.1 and c = 10.8.
b = 8.9
400
-2, -10, -50, -250, -1250...
r = 5
400
2x2 + 4 = 6x2 - 32
x = 3
400
1 - (4 1/2) = t
t = - 7/2
400
abs(10+a) - 3 = 2
a = -5, -15
400
Find the area of a rectangle with base = 8 ft. and height = 3.8 ft.
Area = 30.4 ft2
500
a, a + d, a + 2d, a + 3d, a + 4d...
d = d
500
91 = -8n - (4n - 7)
n = -7
500
(-1/4) - (2 1/2) + 2 = m
m = -3/4
500
abs(-6+b) + 2 = 15
b = 19, -7
500
Find the area of a trapezoid with b1 = 12 km, b2 = 6 km, and height = 8 km.
Area = 72 km2