Equations Aren't Scary!
3x=12
x=4
3x-2x=4x+1
x= -1/3
You have read 15 pages of a book, and continue to read 20 pages every hour.
t=20h+15
x=3x-5x-9x-11x
x=0
What is the formula for surface area?
S.A = ph+2B
3+14x=31
x=2
7x-10=10x+1
x= -3/11
You are $45 in debt, but are making $30 per day.
y=30x-45
You have 13 candles, and you burn 1/2 a candle every minute. Your friend has 9 candles, and they burn 1/3 a candle every minute. Who will run out first?
You will run out first (26 minutes vs 27 minutes)
What is the slope of the equation y=-1/3x -13
-1/3
14x-131=2x
x=10.9
x+1=2
x=1
Your team has 1600 points, but loses 200 points per minute.
y=-200x+1600
5x-10x-15x=5-10-15
x=1
To the nearest tenth, what is the missing side of this right triangle? a=5, b=14, c=?
x+2x=0
x=0
x/5 -3 = -21
x= -90
Your dog has 31 toys, and loses 8 per hour. Your cat has 2 toys, and gains 4 per hour. They will have the same number after some period of time.
31-8x=4x+2
x-1=x-2
There are no solutions.
Find the volume of a cone with radius 5 and height 13, in terms of pi.
108.3 pi
13x-14=-105
x=-7
3x+2x+x+3+2+1=3x-2x-x-3-2-1
x=-2
You have $18, and work for $31/hr. Your friend has $200, and works for $20/hr. At the end of some period of time, you will have the same amount of money.
5x+6x+31-15+=-29x-240
x=-6.4
Find the volume of a sphere with radius 5, using 3.14 for pi.
523.33 (any 523 is sufficient)