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arlik [135]
4 years ago
5

About travel 27 miles in two hours at this rate how many miles will the boat travel in 1/2 hour

Mathematics
1 answer:
Nata [24]4 years ago
4 0
6.75 miles. If you use a proportion, you can solve it like this:

27     x
---    ---
 2     0.5

27x0.5 is 13.5
13.5/2 is 6.75

So... x=6.75
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Simplify 3(x+2)-5x<br><br>1. 6-2x<br>2. 8x+2<br>3.-2x+2<br>4.2x+6​
gulaghasi [49]

Answer:

-2x + 6

Step-by-step explanation:

Step 1: Write expression

3(x + 2) - 5x

Step 2: Distribute

3x + 6 - 5x

Step 3: Combine like terms

-2x + 6

7 0
3 years ago
Read 2 more answers
Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round y
kupik [55]

Answer:

75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5 pounds.

Step-by-step explanation:

The question is missing. It is as follows:

Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains had the following weights (pounds): 69  104  125  129  60  64

Assume that the population of x values has an approximately normal distribution.

Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round your answers to one decimal place.)

75% Confidence Interval can be calculated using M±ME where

  • M is the sample mean weight of the wild mountain lions (\frac{69 +104 +125 +129+60 +64}{6} =91.8)
  • ME is the margin of error of the mean

And margin of error (ME) of the mean can be calculated using the formula

ME=\frac{t*s}{\sqrt{N} } where

  • t is the corresponding statistic in the 75% confidence level and 5 degrees of freedom (1.30)
  • s is the standard deviation of the sample(31.4)
  • N is the sample size (6)

Thus, ME=\frac{1.30*31.4}{\sqrt{6} } ≈16.66

Then 75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5

3 0
3 years ago
A<br> no correlation<br> b<br> positive<br> c<br> quadratic correlation<br> d<br> negative
musickatia [10]

d

because it is in the negative plan of the graph

4 0
3 years ago
A cube has a volume of 216cm³ what is the side length of the cube​
ludmilkaskok [199]

Answer:

The side length of  the cube is 6 cm

Step-by-step explanation:

The volume of a cube is given by

V = s^3

We know the volume is 216

216 = s^3

Take the cube root of each side

216 ^ (1/3) = s^ (1/3)

6 = s

The side length of  the cube is 6 cm

5 0
3 years ago
Read 2 more answers
What is the LCM of two numbers that have no common factors greater than 1?
anyanavicka [17]
This question was already answered before. I'm going to post someone else's answer with credit given of course:

"<span>The answer is their product. The least common multiple (LCM) is the smallest number which is a multiple of two numbers. If two numbers have no common factors greater than 1, then their LCM will be their product. For example, take numbers 7 and 9. They have none common factor greater than 1. So, LCM will be 7 * 9 = 63." - @W0lf93

Not sure if this answers your question, but hope this helped...</span>
5 0
3 years ago
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