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stepladder [879]
3 years ago
5

In a bag there are 13 red marbles 5 blue marbles and 7green marbles what percent of the marbles are green

Mathematics
1 answer:
Anna71 [15]3 years ago
7 0
13 red, 5 blue, 7 green...for a total of 25

percentage of green ones is : 7/25 = 0.28 = 28% <==
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A right cubic prism has edges of 2 1/2 inches. How
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Answer:

Option D, the volume is 15.625 cubes

Step-by-step explanation:

For a cube of side length L, the volume is:

V = L^3

for the smaller cubes, we know that each one has a side length of 1 in, then the volume of each small cube is:

v = (1in)^3 = 1 in^3

Then:

1 in^3 is equivalent to one small cube

Here we know that the side length of our cube is (2 + 1/2) in

Then the volume of this cube will be:

V = [ (2 + 1/2) in]^3

To simplify the calculation, we can write:

2 + 1/2 = 4/2 + 1/2 = 5/2

Then:

V = ( 5/2 in)^3 = (5^3)/(2^3) in^3 = 125/8 in^3 = 15.626 in^3

This means that 15.625 small cubes will fill the prism.

So the correct option is D.  

8 0
2 years ago
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Answer:

x = ± 2

Step-by-step explanation:

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x = ± \sqrt{4} = ± 2

3 0
3 years ago
The annual membership fee at a local club is $100. After each year of membership, the fee is lowered by $8 a year. The
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Answer:

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