Solving Equations with Fractions and Decimals
Totally Random Questions
Solving Each System of Equations with Fractions
Who Knows What's in Here?
Grab Bag - Good Luck!
100
Solve:
1/2x +2/3 = 3/4
12(1/2x+2/3)=12(3/4)
6x + 8 = 9
6x = 1
x = 1/6
100
Solve for x:
x = 20
100
Solve:
y = -3x +2
y= -15/4x + 3
x= 4/3, y= -2
100
Find the area of the circle:
x = 900pi
x ~~ 2,827.43
100
Which whole number is this closest to?
sqrt(154)
12
200
Solve:
1.1x + 0.35x=29
100(1.1x + 0.35x) = 100(29)
110x + 35x = 2900
145x = 2900
x = 20
200
Which one is not a function. Justify your answer.
A is a function. Every input only has one output.
B is not a function because the x value of 2 cannot have more than 1 different output.
200
Solve:
y= x/6 + 1/4
y= x - 9/4
x=3, y = 3/4
200
Write the number in scientific notation:
5.0 x 10^7
200
Solve for x:
x = 20
300
Solve:
x + 0.15x = $2
100(x+0.15x)=$200
100x + 15x= $200
115x = $200
x = $1.74
300
Solve for the area of the circle. The radius is 8.5 cm.
x = 72.25pi
x~~ 226.98
300
Solve:
y = x/2 - 1
y = x+3/12
x=3, y=1/2
300
Find the missing length:
a^2+b^2=c^2
32^2+24^2=c^2
1,024 + 576 = c^2
1,600 = c^2
c = 40
300
Rewrite as a Repeating Decimal:
312/999
400
Solve:
1/5x + 1/3 = 2
15(1/5x+1/3x)=15(2)
3x+5x=30
8x=30
x= 30/8 = 15/4 = 3 3/4
400
Without using a calculator, order the numbers below from least to greatest:
sqrt(102), 10, 3pi, sqrt(99), 1.1x10^1, 9.099
3pi, 9.099, sqrt(99), 10, sqrt(102), 1.1x10^1
400
Solve:
y= 7x +2
y= 2x - 10 1/2
x = -2 1/2, y = -15 1/2
400
Solve:
12/x^3
400
Find the volume of the cylinder:
V=Bh Volume = (area of base)(height)
(r^2pi)(h)
B=(12)^2pi = 144pi cm^2
Volume = 144pi(15) = 2160pi~~6785.84 cm^3
500
Solve:
x/10 + 5/12 = 3x -1
x = 60/149
500
Find the volume of the cone:
Volume of a cone = 1/3 (base area)(height)
V=1/3pir^2h
1/3pi8^2(20)
1,280pi/3
426.66pi
~~1,340.41
500
Solve:
y = 1/3x + 8
y = -1/2x - 2
x = -12, y = 4
500
Find the rule. What is the slope?
500
Find the slope:
(2,-6), (4, -3)
(-3 - -6)/ (4 - 2)
-3/2