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Dmitriy789 [7]
3 years ago
5

Flying against the wind, an airplane travels 3360 kilometers in hours. Flying with the wind, the same plane travels 7560 kilomet

ers in 9 hours. What is the rate of the plane in still air and what is the rate of the wind?
Mathematics
1 answer:
Lerok [7]3 years ago
6 0

Answer:

606.6 and 233.3 respectively

Step-by-step explanation:

Let the speed of plane in still air be x and the speed of wind be y.

ATQ, (x+y)*9=7560 and (x-y)*9=3360. Solving it, we get x=606.6 and y=233.3

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HELP! Given a pyramid l = w = 9.0 mm and V = 324.0 cubic mm , find h in mm
harina [27]

Answer:

The answer to your question is height = 12 mm

Step-by-step explanation:

Data

l = w = 9 mm

V = 324 mm³

h = ?

Formula

V = \frac{Ab x h}{3}

Solve for h

                       3V = Ab h

                       3V / Ab = h    or     h = 3V / Ab

Find the area of the base

Ab = l x w

     = 9 x 9

     = 81 mm²

Substitution

                       h = \frac{3(324)}{81}

Simplification

                       h = \frac{972}{81}

Result

                       h = 12 mm                    

3 0
3 years ago
I need help on this problem pls 13 - 2n = 7 - 3n
Mrrafil [7]
13 - 2n = 7 - 3n
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6 0
3 years ago
What is the thousandth positive odd number ?
Igoryamba
So the formula for odd numbers is 2n

the nth term is 2n
the first odd number is 2(1)=2
second=2(2)

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8 0
3 years ago
The box plots below show the average daily temperatures in July and August for a U.S. city: two box plots shown. The top one is
sergey [27]

The <em>correct answer</em> is:


The mean for July is smaller than the median; and

the mean for August is larger than the median.


Explanation:


A distribution with a positive skew would have a longer whisker in the positive direction than in the negative direction. A larger mean than median would also indicate a positive skew.


Alternatively, a distribution with a negative skew would have a longer whisker in the negative direction than in the positive direction. A smaller mean than median would also indicate a negative skew.


The whisker in the negative direction for July is longer than the whisker in the positive direction. This indicates a negative skew.


The whisker in the positive direction for August is longer than the whisker in the negative direction. This indicates a positive skew.

7 0
3 years ago
A coast guard ship patrols an area of 125 square miles. The area the ship patrols is a square. About how long is each side of th
zvonat [6]
125 / 4 = 30 (for rounding), not sure how this is middle school mathematics.
5 0
3 years ago
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