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astraxan [27]
3 years ago
14

An airplane flies 750 miles due west in 1 1! 2hours and 750 miles due south in 2 hours. what is the average speed of the airplan

e
Mathematics
1 answer:
LiRa [457]3 years ago
3 0
Use the Pyth. Theorem to calculate the total distance flown by the plane in 3 1/2 hours:

d = sqrt(750^2 + 750^2) = 750sqrt(2) miles

Now divide this distance by the total time (3 1/2 hours):

750sqrt(2) miles
---------------------- = 303 miles per hour average
    3.5 hours
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Answer:A boo

Step-by-step explanation: trust me :) ✨

5 0
2 years ago
What numbers rounded to 200,000 when rounded to the nearest hundred thousand
Elanso [62]

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7 0
3 years ago
what is the smallest of three consecutive integers i the sum of the smaller two integers is two more than seven times the larges
NNADVOKAT [17]

Answer:

The numbers that meet these conditions are -3, -2 and -1.

This means that the wording of the question is somewhat ambiguous:

The <em>lowest</em> of the three numbers is -3.

The <em>smallest</em> however is -1.

You may need clarification on which of those is being asked for.

Step-by-step explanation:

Let's call those numbers a, b and c, with a the smallest and c the largest. We're told two key things here:

1) The sum of the smaller two integers is two more than seven times the largest integer.  In other words a + b = 7c + 2

2) We're looking for three consecutive integers, which means that we can define them with a single variable.  If the smallest one is a, then the others are a + 1 and a + 2.

We can take those and put them together, giving us the equation:

a + (a + 1) =  7(a + 2) + 2

Which we can then solve for a:

a + (a + 1) =  7(a + 2) + 2

2a + 1 = 7a + 14 + 2

2a - 7a = 14 + 2 - 1

-5a = 15

a = -3

Since a is -3 and also the smallest, we can then say that the numbers are -3, -2 and -1.

3 0
2 years ago
​
DedPeter [7]

Answer:

The solution is (3/8, -7/8).

Step-by-step explanation:

y = −5x + 1

y = 3x − 2

Since  the 2 expressions in x are both equal to y :

−5x + 1  = 3x - 2

-5x - 3x = -2 - 1

-8x = -3

x = 3/8.

So y = 3x - 2

= 3(3/8) - 2

= 9/8 - 2 = -7/8.

6 0
3 years ago
PLEASE help me solve this problem
irakobra [83]

Answer:

that looks hard?

Step-by-step explanation:

8 0
3 years ago
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