how’s your everyday math?. how much paint do you need to re-do your bathroom? (1 gallon = 500 sq...
TRANSCRIPT
HOW’S YOUREVERYDAY
MATH?
How much paintdo you need to re-do your bathroom?(1 gallon = 500 sq ft)
How many sheets of drywalldo you need to
sheetrock your garage?(1 sheet = 32 sq ft)
Which floor refinisher’s bidis best for you?
$2.00/sq ft
$2.25/sq ft(includes furniture
removal and return)
All you need to be a smart homeowner is to be able to calculate the square footage of a rectangle.
Don’t say you’re not good at math!
rectangle 2 rectangles
2 triangles = 1 rectangle
1 parallelogram = 1 rectangle
Trapezoid:Average top and bottom and you have a rectangle
CAN’T REMEMBER YOUR FORMULAS FROM GEOMETRY
CLASS?
Check out: www.math.com> Geometry> Area Formulas
Now back to your floor refinishing problem…
Let’s say you hire the refinisher who gave you the lower price
($2.00/sq ft) to sand, stain, and apply 2 coats of polyurethane to your
livingroom , which measures 15 ft wide by 22 ft long.
Your wife says, “Let’s do it! I checked math.com and it will only cost $66!”
Photo credit: Rebecca Cook-Dubin
So your buddy comes over after work and you’re up until midnight moving your furniture.
Over the next week you go to a chiropractor three times ($225.)
The job gets done.
It looks great.
2 weeks later the bill comes.
$1200????????????????Photo credit: Jesse Cook-Dubin
What have you learned?
1. Your wife should go to www.math.com/decimalplaces
2. Your floor refinisher doesn’t know that you checked www.math.com for the formula
3. For another $82.50, you could have saved 3 trips to the chiropractor