Monday

July 28, 2014

July 28, 2014

Posted by **Caroline** on Monday, April 4, 2011 at 7:49pm.

Q How many 2X6 pieces of 16 ft x 5 1/2 ins. for a porch that measures 16ft x 14ft?

I changed the mixed number to an improper fraction (11/2) and found the area (224).

11/2 x 224/1

- MATH -
**Reiny**, Monday, April 4, 2011 at 7:57pmSince your porch is 16 ft long and each of the 2by6's is also 16 feet long, all you have to care about is how many are neeedd side by side to go 14 feet

14 feet = 168 inches

so number of pieces to fit sideways = 168/5.5 = 30.5

Problem I see, ..

Usually a space is left between adjoining pieces of lumber , you do not say how much that space is.

The above solution implies that we leave no space, which is not advisable.

Anyway, according to the above math, you would need 31 pieces, having to cut the last piece.

**Related Questions**

Math - Ha! Mom said if I could find help online to go for it so here I am asking...

Algebra - I am having such a hard time in this class. Hopefully someone here can...

math - we are trying to figure out a 7th grade math problem. 7/3X=2/3 We can't ...

Math - I am trying to figure out how to find the answer for r in a fraction. I ...

Math - I am trying to figure how to solve this but I am totally confused? Can ...

Geometry - 42x25 rectangular roof(one side) We need to fill this roof with 8x4 ...

physics - Okay, I have an example problem that I'm trying to solve that comes ...

7th grade math - what are the rules for these two problem? I can not figure it ...

Math - Two corresponding sides of similar polygons have the ratio 5:4. The ...

9th grade - I am having trouble trying to figure out how to work this problem: ...