SOLUTION: A chair is being re-upholstered. The back is a square, 27" x 27". 7/16" diameter(head)tacks are placed uniformly,1/4" apart, around the square. Determine number of tacks used.

Question 1166407: A chair is being re-upholstered. The back is a square, 27" x 27". 7/16" diameter(head)tacks are placed uniformly,1/4" apart, around the square. Determine number of tacks used.
Answer by Edwin McCravy(20065) (Show Source): You can put this solution on YOUR website!

The perimeter, 4*27" = 108" consists of n tacks and n-1 gaps between them, so



Solve that for n, get



so there's 157 tacks and the extra 5/11" of space is because the tacks are not
exactly tangent to the edge.

Edwin

RELATED QUESTIONS
A chair is being re-upholstered. The back is square, 27" x 27". Tacks are placed... (answered by solver91311)

Brenda has a jar that contains 5 blue tacks and 7 red tacks. She draws 3 tacks at random... (answered by math_tutor2020,ikleyn)

The graph on the right shows a circle with its center. There are 40 stone... (answered by Alan3354)

which product represents the solution to the system: -y+7x=14 -x+4y=1 a) [1/27... (answered by stanbon)

^ = exponent is being used. / = represent fraction being used 9^x = 1/27 please show by... (answered by stanbon)

What is the sum of the infinite geometric series 3/4-9/16+27/64-81/256+ ..? A. 3 b. 1... (answered by AnlytcPhil)

-1/3x + 7 = 16, what is the value of 2x + 1? A. -5 B. -27 C. -53 D.... (answered by bucky)

There is a graph; find the value of x 1 3 5 7 3 7 15 27 5 15 37 79 7 27 79 x (answered by Fombitz,Edwin McCravy,sjian)

i should find the vertex of the following: f(x) = x^2+8x+27 do i have to do it as... (answered by jim_thompson5910)