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marishachu [46]
3 years ago
7

PLEASE HELP!!!!

Mathematics
1 answer:
Burka [1]3 years ago
7 0
I think it is negative five
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The density of a fish tank is 0.3 fish over feet cubed. There are 15 fish in the tank. What is the volume of the tank?
ale4655 [162]
Since Density = mass/ volume (d = m / v), and assuming the 15 fish weigh 1 gram each - if weight of each fish isn't given -  (making that a total of 15 grams), 

D = m / v
0.3 = 15 / v 
v = 15 / 0.3 = 50 ft cubed

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5 0
3 years ago
A l-meter steel rod is bent into a rectangle so that its length exceeds quadruple its width
Dmitry_Shevchenko [17]

Answer:

The dimensions of the newly formed rectangle is length is 41 cm and width is 9 cm.

Step-by-step explanation:

Given,

A 1 meter steel rod is bent into a rectangle.

That means the perimeter of the rectangle is 1 meter.

So, Perimeter = 1\ m=100\ cm

Let the width of the rectangle be 'x'.

Now According to question, length exceeds quadruple its width by 5 cm.

Hence framing the above sentence in equation form, we get;

Length=4x+5

Now we use the formula of  perimeter of rectangle,

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On substituting the values, we get;

2(4x+5+x)=100\\\\(5x+5)=\frac{100}{2}\\\\5x+5=50\\\\5x=50-5\\\\5x=45\\\\x=\frac{45}{5}=9

Now, we substitute the value of x to get the value of length;

Length=4x+5=4\times9+5=36+5=41\ cm

Thus, Width=9 cm    Length=41 cm

Hence the dimensions of the newly formed rectangle is length is 41 cm and width is 9 cm.

6 0
3 years ago
What is 1 divided by 5/2
Hunter-Best [27]
The answer is 0.4 or \frac{2}{5}
3 0
3 years ago
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Fynjy0 [20]
If it has real zeros at x=3 and 7, the factors of f(x) are:

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3 years ago
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matrenka [14]
A prime number can <span>be divided evenly only by 1, or itself. </span>
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Therefore, the prime numbers between 0, 1, 2, 3 are 

2 and 3 

and the only even one among those two is two, so your answer would be One. </span>
7 0
3 years ago
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