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Ber [7]
3 years ago
14

a submarine dives to a depth of 54.6 meters below the surface of the water in 4 minutes. what integer represents the constant ra

te the submarine travels per minute?
Mathematics
1 answer:
TiliK225 [7]3 years ago
3 0

The average rate of dive is  (54.6 / 4) meters per minute.

That improper fraction can be simplified to  13.65  meters per minute.

The average dive rate is not an integer.  The nearest integer is  14 m/min.


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I only have 9 mins left plz help
Rufina [12.5K]

Answer:

7x + 1 = 7x + 1

8 0
3 years ago
Read 2 more answers
Which value for x makes the sentence true?
Sedbober [7]

Answer:

D) -5

Step-by-step explanation:

10x-5=-55

10x=-55+5

10x=-50

x=-50/10

x=-5

7 0
3 years ago
Jane cuts a piece of twine into three pieces.The second pieces is 7 times as long as the
Dovator [93]
Twine into three pieces, lets call them x, y and z

The second piece is 7 times as long as the first piece
7x = y
The third piece is 5 feet longer than the first piece
x + 5 = z
The total length of twine is 320 feet
x + y + z = 320

This is a simultaneous equation.
My goal is to make the final equation in terms of x <span>i.e. 5.5x = 320
</span>I choose the final equation because it is the only equation which has a value in it.

We will substitute the first and second equation into the third equation.
7x = y , x + 5 = z
x + y + z = 320
x + (7x) + (x+5) = 320
9x + 5 = 320
9x = 315
x = 35
Now that we know x, we can substitute it into the first and second equation to find x and y
7x = y              =>        7(35) = y      =>   245 = y
x + 5 = z          =>        (35) + 5 = z  =>   40 = z

In summary
>The first piece, x, is 35 feet long
>The second piece, y, is 245 feet long
>The third piece, z, is 40 feet log
6 0
3 years ago
F(x)=x^2+8x+15/2x^2+11x+5
gulaghasi [49]

Answer:

Step-by-step explanation:

3 0
3 years ago
Please help ASAP!
Fudgin [204]

Amplitude:

we can see that

maximum value is 3

minimum value is -1

so,

A=\frac{max-min}{2}

A=\frac{3+1}{2}

A=2

Period:

It is time completed after which value repeats itself

so, we get

T=\pi -0

T=\pi

so,

option-D............Answer

5 0
3 years ago
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