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Alja [10]
3 years ago
10

A submarine cuts through the water at an elevation of 203 meters under the sea. The sub rises, and the elevation changes by 4.3

meters per minute for the first 15 minutes. The sub continues to rise at 5.2 meters per minute for the next 12 minutes. What is the elevation of the submarine after rising? Assume that sea level is at an elevation of 0 feet.
Mathematics
1 answer:
Natalija [7]3 years ago
4 0
It should be 76.1m under water. First multiple 15x4.3=64.5, and 5.2x12=62.4. Add those together to get 126.9. Subtract that from the initial elevation of 203 and get your answer.
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Charlie runs at a speed of 3 yards per second . About how many miles per hour does Charlie run?
MrMuchimi
Ok so this can get tricky, it is basically just asking for you to perform many unit conversions. I'll try to simplify it for you here while still maintaining the explanation. If you have any questions about this process feel free to message me. 

3 yards = ____ miles (conversion factor is 1760 because there are 1760 yards in a mile) 

3/1760 = 0.017 miles,

Now we just need to convert seconds to hours. 

1 second is how many mins, then how many mins in an hour? 

360 seconds in an hour. 

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3 years ago
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Use the graphs to solve the simultaneous linear equations
Delicious77 [7]

Answer:

x = 2 and y = 5

Step-by-step explanation:

Given the simultaneous linear equations

y = 2x + 1 and x + y = 7

We are to find the  value of x and y;

Substitute 1 into 2

From 2;

x+y = 7

x+2x+1 = 7

3x+1 = 7

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x = 6/3

x = 2

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y = 2(2) + 1

y = 4+1

y = 5

Hence the solution from the graph will be the point where the line cuts the x axis and this will be at x = 2 and y = 5

4 0
2 years ago
How do the values compare? Order the values from least to greatest
malfutka [58]
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3 years ago
Use the second method in the preceding segment to find the probability that the 6th toss out of a total of 10 tosses is Heads, g
sergij07 [2.7K]

Answer:

<h2>The answer is 0.008789.</h2>

Step-by-step explanation:

The probability of getting a head or tail in a toss is \frac{1}{2}.

It is given that in the 6th toss, the outcome should be head.

Rather than the 6th toss, there are 9 tosses. From these 9 tosses 1 toss can be selected in 9 ways.

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2 years ago
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Zina [86]

Answer:

The equation of the line would be y = -1/3x - 4

Step-by-step explanation:

In order to find this, we first need to find the slope of the original line. We do this by solving for y.

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