Mathematics: Afence builder uses boards 3 1/2 feet long for the vertical slats on the fence. how many slats can be made from a board that is 42 feet long

Afence builder uses boards 3 1/2 feet long for

bloop3r

10.03.2022

12 slats can be made from a board i,e 42 feet long

Step-by-step explanation:

As per the given statement: A fence builder uses boards $3\frac{1}{2}$ feet long for the vertical slats on the fence.

We have to calculate how many slats can be made from a board that is 42 feet long.

Builder uses board $3\frac{1}{2} = \frac{7}{2}$ feet long for the vertical slats.

then;

for 42 feet long = $\frac{42}{\frac{7}{2} } = 42 \times \frac{2}{7} = 6 \times 2 = 12$ slats can be made.

Therefore, 12 slats can be made from a board that is 42 feet long.

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sierranicasio

23.12.2021

Area of the house and porch is 875 square feet.

Step-by-step explanation:

Given question is incomplete: find the complete question in the attachment.

From the figure attached,

Area of the octagonal house and porch = Area of the rectangle - Area of two rectangles cut off from the top corners of the rectangle

Area of the rectangle = 30×30 = 900 square feet

Area of the triangles = $2[\frac{1}{2}\times 5\times 5]$

= 25 square feet

Area of the house and porch = 900 - 25

= 875 square feet

Therefore, area of the house and porch is 875 square feet.

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