The figure below shows an upside-down pyramid with a square base.

Mathematics

1 answer:

vesna_86 [32]4 years ago

4 0

Answer:

Step-by-step explanation:

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I need help solving this proportion!! <br><br> 3/x-1 = 2/x+4

Gelneren [198K]

1. Move 2/x to the left side of proportion by changing sign before it:
3/x - 1 - 2/x = 4

2. Move 1 to the right side of proportion and change it's sign as well:
3/x - 2/x = 4 + 1

3. Sum numerators in the left side of proportion since they have common denominator (x) abd also sum the numbers in the right side too:
(3-2)/x = 5

4. Calculate numerator in the left side of proportion:
1/x = 5

5. Move 1 to the right side of proportion by dividing that side by it:
x = 1/5

3 0

4 years ago

A triangle has a priemeter of 39 units . Each side of this triangle is the same length. What is the length of one side of the tr

Readme [11.4K]

This is easier to understand with a picture...

We know that a triangle has 3 sides right?

Well, if the perimeter is 39 and there are 3 sides you would divide 39 by the 3 sides

39/3=13

Therefore, one side of the triangle would equal 13