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Firlakuza [10]
3 years ago
8

A 64-inch board is cut into three pieces so that the second piece is twice as long as the first piece, and the third

Mathematics
1 answer:
Dafna1 [17]3 years ago
8 0
<h3>Answer:  40 inches</h3>

==========================================================

Explanation:

  • x = first piece
  • 2x = second piece, since its twice as long as the first
  • 5x = third piece, since its five time as long as the first

x is some positive real number, and the units of each are in inches.

Add up the smaller pieces and we should get 64 inches back again

x+2x+5x = 64

8x = 64

x = 64/8

x = 8

The first piece is 8 inches long.

2x = 2*8 = 16 is the length of the second piece (in inches)

The third piece is 40 inches because 5x = 5*8 = 40

--------

Summary:

first = 8 inches

second = 16 inches

third = 40 inches

Check: 8+16+40 = 64, which confirms the answer

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Hope this helps

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the angle of elevation of the top of a building from a point 80 ft away from the building on level ground is 70° determine the b
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The tangent function is the appropriate one to use here:
                       opp          h
tan 70 deg = -------- = ----------
                        adj        80 ft
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3 years ago
The radius of a sphere is 3 inches. Which represents the volume of the sphere?
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Answer:

b

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3 years ago
Read 2 more answers
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