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IRISSAK [1]
3 years ago
15

3) The International Space Station takes 644 minutes to orbit Earth 7 times. About how long does each orbit take? I got 92 am I

correct to crazy? 100 minutes 95 minutes 90 minutes 80 minutes
Mathematics
1 answer:
taurus [48]3 years ago
4 0

Given:

The International Space Station takes 644 minutes to orbit Earth 7 times.

To find:

The time taken by each orbit.

Solution:

Total time = 644 minutes

Total number of orbits =7

Now,

\text{Time taken be each orbit}=\dfrac{\text{Total time}}{\text{Number of orbits}}

\text{Time taken be each orbit}=\dfrac{644}{7}

\text{Time taken be each orbit}=92

So, the required time is 92 minutes.

Therefore, you are correct and all options are incorrect.

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Answer:

16x+120=Total savings

Step-by-step explanation:

the 16x represents how much money you earn the x is the number of weeks you did the homework and the plus 120 is the base

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5. Write an equivalent ratio to 18:1?
Molodets [167]

Answer:

36:2

Step-by-step explanation:

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Solve the following quadratic equation by completing the square: x² + 12x = 15
Lerok [7]
Answer:

x = -1.14 or -13.14

Explanations:

The given equation is:

x^2+12x\text{  =  15}

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That is add 6² to both sides

x^2+12x\text{ + 6}^{2}\text{  =  15 + 6}^{2}\begin{gathered} (x+6)^2\text{ =  15  +  3}6 \\ (x+6)^2\text{ = 51} \\  \end{gathered}

Find the square root of both sides:

\begin{gathered} \sqrt[]{(x+6)^2_{}}=\pm\sqrt[]{51} \\ \text{x  +  6  = }\pm\sqrt[]{51} \\ x\text{  =  -6  }\pm\sqrt[]{51} \\ \text{x  = }-6\pm7.14 \\ x\text{  = -6+7.14  = }1.14 \\ x\text{ = -6 - 7.14} \\ \text{x = -13.14} \end{gathered}

x = -1.14 or -13.14

3 0
1 year ago
Help on this math questions please!
padilas [110]

Answer:

y =  - 3 {x}^{2} ( {x}^{2}  + 8x + 15) =  \\  =- 3 {x}^{2} ( (x + 3)(x + 5))  \\ roots \\ 0 \\  - 3 \\  - 5

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A quantity p varies jointly with r and s. Which expression represents the constant of variation, k?
Zina [86]

The correct answer is p/rs.

In order to find this first state the direct variation with the constant k included.

p = krs

Now to find the value of k, we simply divide away the r and s

p/rs = k

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