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Aneli [31]
2 years ago
9

Can someone help will mark brainlist

Mathematics
1 answer:
Natali [406]2 years ago
8 0

Answer:

The answer is

\frac{13}{60}

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(25 points)
Irina18 [472]

Answer:

Take $2975 divided by 2, then take that number divided by $17,500 to figure out the annual interest rate.

Annual interest rate: 8.5%

Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
There are thirteen animals in a barn. Some are chickens and some are pigs there are 40 legs in all. How many of each animal are
slega [8]
Hi. In order to solve this word problem, you must make two equations and solve them together. To make it easy, we will let the letter "p" represent the pigs and the letter "c" for the chickens. So our first equation will be:

p + c = 13

Now to count the legs - we know that pigs have 4 legs and chickens have 2 so our next equation will be:

2c + 4p = 40

Using the first equation we see that c = 13 - p Now we insert this into the second equation and solve:

2x(13-p) +4 pm = 40
26 - 2p + 4p = 40
2p = 14
p = 7 (there are 7 pigs so now we know there are 6 chickens.

Answer: 7 pigs and 6 chickens

I hope this helps.

Take care,
Diana
3 0
3 years ago
Write the expressions for the following situations. The difference of 15 and 4 times a number I want to buy 4 tickets to go to D
ElenaW [278]

Answer:

  • The difference of 15 and 4 times a number

4a - 15

  • I want to buy 4 tickets to go to Disney World. They are currently on sale for with a 12% discount.

100% representate the original cost of tikets,

100% = 100/100 = 1

12% discont:

12% = 12/100 = 0.12

1 - 0.12 = 0.88

0.88

then the expressión is:

4*0,88d

=3.52 d

d = original cost of each ticket

5 0
3 years ago
A teacher promised a movie day to the class that did better, on average, on their test. The box plot shows the results of the te
alisha [4.7K]

Inter portal range of 4th period box plot is higher than the 2nd period of box plot. The 4th period class should get the reward.

<h3>What is box plot?</h3>

Box plot is the way of representation of data which gives the graphical image of the data set to understand better.

The minimum and the maximum values in the box plot is plotted at the end points.

Given information-

Box plot labeled 2nd period with min at 77, Q1 at 78, median at 89, Q3 at 92, max at 100.

Box plot labeled 4th period with min at 72, Q1 at 82.5, median at 89, Q3 at 96, max at 97. 5.

From the box plot we can see the points as,

  • The maximum score of the 2nd period class is 77 and the 4th period class is 72, but this does not show the better performance of the class.
  • The maximum score of the 2nd period class is 100 and the 4th period class is 97.5, but this does not show the better performance of the class.
  • Median for both the class is same which is 89.
  • The inter portal range of the box plot of 4th period is higher than the 2nd period box plot. Thus 4th period class performed better.

Hence, the 4th period class should get the reward. Though the medians are the same, the first and third quadrilles are higher, so the students did better on average than in the 2nd period class.

Learn more about the box plot here;

brainly.com/question/14277132

4 0
3 years ago
If f = 350i - 250j - 450k6 n and cable ab is 9 m long, determine the x, y, z coordinates of point a
ycow [4]
<span> we know the length of the cable is 9m.
That means the magnitude of  </span><span><span>r<span><span>​<span>AB</span></span><span>​​</span></span></span>=9</span><span>m.
The unit vector, denoted u, is each of </span><span>r<span><span>​<span>AB</span></span><span>​​</span></span></span><span> divided by the magnitude.

</span>u=<span>(<span>​​<span>​x/9</span><span>​​</span></span>i−<span>​y/9<span>​​</span></span>j−<span>​z/9<span>​​</span></span>k<span>)

</span></span><span>We can also figure out the unit vector of F. 
</span>u=​(350i - 250j - 450k)/√(350² +(-250)² +(-450)²)
u=0.562i−0.401j−0.723<span>k
</span>
<span>Force F is directed from point A to B, then both unit vectors must be equal.

Therefore
</span>(​​​x/9​​i−​y/9​​j−​z/9​​k)=0.562i−0.401j−0.723k
<span>We can now solve for each term
x/9=0.562----- > x=5.058 m
-y/9=-0.401--------- > y=3.609 m
-z/9=-0.723------- > z=6.507 m

The answer is
the coordinates of point a
(5.058,3.609,6.507)
</span>
6 0
3 years ago
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