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Katen [24]
3 years ago
6

A northern elephant seal made 60 dives in 12 hours at this rate how many dives did the sea turtle make in seven hours

Mathematics
1 answer:
Galina-37 [17]3 years ago
7 0
The answer is 56! I used a double number line! You have to get the unit rate first! Unit means 1, you have to get from 12 to 1! I did 12 divided by 12, and got 1! Whatever I do to the bottom I do to the top. So I divided 60 by 12 and got 5. Now we have to get to seven, so I multiplied 1 x 7 and got 7. Than I multiplied 5 times 7 and got 56! I hope <em>I helped!    :D</em>
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Given the system of equations 4x+2y=8 and 5x-3y=4, what is the value of x
MArishka [77]
◆ LINEAR EQUATIONS IN TWO VARIABLES ◆


given \: the \: sytem \: of \: equation \:  -  \\  \\ 4x + 2y = 8 \:  \\ therefore   \\ \\ \: 2x + y = 4   \:  \:  \:  -  -  - eq(1)\\  \\ 5x - 3y = 4 \:  \:  \:  \:  -  -   - eq(2) \\  \\ multiplying \: eq(1) \:  \: by  \:  \:  - 3 \:   \\  \\ we \: get \:   -  \\  \\  - 6x - 3y =  - 12 \:  \:  \:  -  -  - eq(3) \\  \\ solving \: eq(2) \: and \: eq(3) \: simultaneously \\  \\ we \: get \:  -  \\  \\ 11x = 16 \\  \\ x =  \frac{16}{11}  \:  \:  \:  \:  \: ans.
8 0
4 years ago
2x+2y=10 solve for x
irakobra [83]

Isolate the x. Note the equal sign. What you do to one side you do to the other.


Subtract 2y from both sides


2x + 2y (-2y) = 10 (-2y)


2x = 10 - 2y


Isolate the x, divide 2 from both sides and from all terms.


(2x)/2 = (10 - 2y)/2


x = 5 - y


Place the variable in the front


x = -y + 5


x = -y + 5 is your answer


hope this helps

7 0
3 years ago
$56,820 rounded to the nearest dollar
Alex_Xolod [135]
Well, if that is a comma in the number, it is already rounded. If the comma is supposed to be a decimal, the answer would be $57.
6 0
3 years ago
HELP PLEASE! ONLY 5 MORE MINUTES! Look at the following shape below: Please find the PERIMETER of the following shape using the
Evgen [1.6K]

Answer:

The perimeter is P=73.12\ cm

Step-by-step explanation:

we know that

The perimeter of the figure is equal to the circumference of a semicircle

plus the perimeter of a square minus the diameter of the circle

so

P=\pi r+4(b)-D

we have

r=8\ cm

b=16\ cm

D=16\ cm

The diameter of the circle is equal to the length side of the square

substitute

P=(3.14)(8)+4(16)-16

P=25.12+64-16

P=73.12\ cm

7 0
3 years ago
PLEASE HELP!! I DO NOT UNDERSTAND THIS ONE BIT. PLEASE RESPOND!
Slav-nsk [51]
Substitute z with 3.
3(4)^3
Cube 4 with 3
3(64)
Multiply 3 and 64
=192
4 0
3 years ago
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