Flying against the wind a jet travels 7740 miles in 9 hours. Flying with the wind the same jet travels 4000 80 miles in 3 hours. What is the rate of the jet in still air and what is the rate of the wind?

Answers

Answer 1
Answer: j\ \rightarrow\ the\ rate\ of\ the\ jet\ in\ still\ air \nw\ \rightarrow\ the\ rate\ of\ the\ wind\n\nj-w= \frac{\big{7740\ miles}}{\big{9\ hours}}\ \ \ \Rightarrow\ \ \ j-w=860\ (miles)/( hour)\n\n j+w= \frac{\big{4080\ miles}}{\big{3\ hours}}\ \ \ \Rightarrow\ \ \ j+w=1360\ (miles)/( hour)\n----------\n\n2j=(860+1360)\ (miles)/( hour)\ \ \ \Rightarrow\ \ \ 2j=2220\ (miles)/( hour)\ \ \ \Rightarrow\ \ \ j=1110\ (miles)/( hour)

j+w=1360\ (miles)/( hour)\ \ \ \Rightarrow\ \ \ w=(1360}-1110)\ (miles)/( hour)=250\ (miles)/( hour)\n\n\nAns.\ the\ rate\ of\ the\ jet\ in\ still\ air\ is\ 1110\ (mi)/(hr) \ \ \ \n\n.\ \ \ \ \ \ and\ \ \ the\ rate\ of\ wind\ is\ 250\ (mi)/(hr)

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Which sentence uses punctuation correctly? a. The last book in the series, borrowed from a classmate, is quite long.
b. The last book in the series borrowed from a classmate is quite long.
c. The last book in the series borrowed from a classmate, is quite long.
d. The last book in the series, borrowed from a classmate is quite long.

Answers

It would probably be A because it makes more sence

A teacher assigns a journal to be completed. In the journal, a student is supposed to include 32 quotations from a book they read in class. Their are 19 chapters in the book. How many quotations are to be given from every chapter?

Answers

32➗19= 1.684...

So that would mean that you would need 1-2 quotations per chapter with the minimum of at least 1 per chapter.

You would need 1-2 quotations

Hope this helps! :3

Which of the following are useful ways of finding the value of a variable? Check all that applyA.Writing an equation
B.Drawing a graph
C.Reading a table
D.Drawing a diagram

Answers

Writing an equation and Drawing a graph are two ways or useful ways of finding the value of the variable. These two are the basic ways of solving the given variable equation. In mathematical ways, this is the most useful ways.
Drawing a graph as it shows the change in variables.

How do you write 56/50 as a percentage

Answers

Answer:

112%.

Step-by-step explanation:

To write 56/50 as a percentage, you can follow these steps:

1. Divide the numerator (top number) by the denominator (bottom number): 56 ÷ 50 = 1.12.

2. Multiply the result by 100 to convert it to a percentage: 1.12 × 100 = 112%.

Therefore, 56/50 can be written as 112%. This means that the fraction 56/50 is equivalent to 112 out of 100, or 112%.

Example:

Let's say you have 56 apples and you want to express it as a percentage of a total of 50 apples. To find out what percentage 56 apples is out of 50, you can use the fraction 56/50. By following the steps above, you find that it is equal to 112%. This means that 56 apples represents 112% of the total of 50 apples.

Simplify this expression.
2^5(13 +12)

Answers

Answer:

800

Step-by-step explanation:

You do 2 to the 5 power, which equals 32. Then add 13 and 12 to get 25. Then multiply 32 and 25 to get 800

A sixth-grade class is painting a mural. To make a darker shade of orange, they use a ratio of 5 ounces of red paint to 3ounces of yellow paint. Use this ratio to consider the amount of yellow paint needed for each amount of red paint listed in the table.
Point Red Paint, x
(ounces) Yellow Paint, y
(ounces)
A
5

B
15

C
20


Determine ordered pairs for points A
, B, and C

, and graph the relationship of the amount of red paint to the amount of yellow paint on the coordinate plane.

Click on the grid to plot the three points.

Answers

Answer:

I think its B

Step-by-step explanation: