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3 years ago

How do I explain the answer

Mathematics

2 answers:

xz_007 [3.2K]3 years ago

8 0

Explaining the answer means to write down the steps you took to solve the problem

zepelin [54]3 years ago

4 0

Explaining the answer with math problems just means show your work

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14 thanks you so much

Zigmanuir [339]

Set up the equation 88+7.25h=169. Now that we have the equation and the only variable to solve is h, we will begin the algebra.

1. Using the Subtraction Property of Equality, subtract 88 from both sides to get the equation 7.25h = 81

2. Now use the Division Property of Equality to divide both sides of the equation by 7.25. You should then get h = 11.1724...

Now assuming he is getting paid by the hour, the number of hours he needs to work to get the skateboard is 12.

7 0

3 years ago

Read 2 more answers

I really need assistanceee. ^•^

Lana71 [14]

Y+6=5(x-4) so do distributive. y+6=5x-20 and then pass 6 to subtract y=5x-20-6 and y=5x-26

7 0

3 years ago

Sally is trying to decide whether this triangle is a right triangle, so she measures the third side. The triangle is RIGHT if th

Sophie [7]

Answer:

Step-by-step explanation:

The answer is 12 inches

6 0

4 years ago

HELP FAST ILL MAKE BRAINIEST Mr. McClellan compared the weights (in pounds) of pairs of elk antlers dropped at Mount St Helens N

Anika [276]

a.1 Line plot for eight of elk antler pairs at Mount St Helens NVM

The diagram is shown in figure 1.

a.2 Weight of elk antler pairs at Rocky Mountain NP

The diagram is shown in figure 2.

b. Calculate the following for each set of data:

We can found the mean (µ) of a set of data points by adding them up and dividing by the number of data points.

b.1 Purple Mean:

Set: $\{34, 34, 30, 30, 30, 28, 28, 26\} \rightarrow \frac{34+34+30+30+30+28+28+26}{8} \rightarrow \boxed{\mu=30}$

b2. Red Mean:

Set: $\{40, 38, 36, 36, 36, 36, 34, 32\} \rightarrow \frac{40+38+36+36+36+36+34+32}{8} \rightarrow \boxed{\mu=36}$

b.3 Red Median

The Median is the middle of a sorted list of numbers. The median of a finite list of numbers can be found by arranging all the numbers from smallest to greatest. So, arranging the red set we have:

$\{32, 34, 36, 36, 36, 36, 38, 40\}$

Given that the number of elements is pair, the median can be solved as follows:

 $\overline{x}=\frac{x_{(n/2)}+ x_{((n/2)+1)}}{2}$

∴ $n=8$
∴ $x_{(n/2)}=x_{(4)}=36$
∴ $x_{((n/2)+1)}=x_{(5)}=36$

Then:

$\overline{x}=\frac{36+36}{2}=36$

b.4 Purple MAD

The Mean Absolute Deviation (MAD) is when you find the distance of each data point from the mean and then find the mean of those distances. So:

$\{34, 34, 30, 30, 30, 28, 28, 26\}$ has $\mu=30$
$distances=\{4, 4, 0, 0, 0, 2, 2, 4\} \rightarrow \frac{4+4+0+0+0+2+2+4}{8}= \boxed{MAD=2}$

b.5 Red MAD

$\{40, 38, 36, 36, 36, 36, 34, 32\}$ has $\mu=36$
$distances=\{4, 2, 0, 0, 0, 0, 2, 4\} \rightarrow \frac{4+2+0+0+0+0+2+4}{8}= \boxed{MAD=1.5}$

c. Calculate the means-to-MAD ratio for the two areas of collection

c.1 Purple set:

The ratio is the relationship between the mean and the MAD indicating how many times the first number contains the second, so:

$\frac{\mu}{MAD}= \frac{30}{2}=\boxed{15}$

c.2 Red set:

$\frac{\mu}{MAD}= \frac{36}{1.5}=\boxed{24}$

d. What inference can be made about the areas in regard to weight of dropped elk antlers?

MAD tells us how far, on average, all values are from the middle. So, in the example weight of elk antler pairs at Mount St Helens NVM are, on average, 2 away from the middle. On the other hand, weight of elk antler pairs at Rocky Mountain NP are, on average, 1.5 away from the middle. So, we can assure that elk antler pairs at Rocky Mountain NP weighs more than elk antler pairs at Mount St Helens NVM.

3 0

3 years ago

Someone help please !!!!

Dmitriy789 [7]

You would take answer you got for how much they spent and multiply the answer by 2.

6 0

3 years ago