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myrzilka [38]
4 years ago
14

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. Find the elevation of the pl

ane before its descen.
Mathematics
1 answer:
AfilCa [17]4 years ago
7 0

Answer:

18 miles

Step-by-step explanation:

Let's call it's initial elevation x. Because it descends 3 miles, we now have x - 3. The question says it is now 15 miles above sea level, or x - 3 = 15, and adding 3 to both sides shows that x = 18 miles.

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Find the length of the median and the missing base. Be sure to show all your work. NO LINKS!!!​
dezoksy [38]

Answer:

The bottom is  11

The median is  12

Step-by-step explanation:

The median is the average of the top and bottom

(13+ 2x-3) /2 = 4x-16

Combine like terms

(10+2x)/2 = 4x-16

Divide by 2

5+x = 4x-16

Subtract x from each side

5+x-x = 4x-16-x

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Add 16 to each side

5+16 = 3x-16+16

21 = 3x

Divide by 3

21/3 = 3x/3

7 =x

The bottom is 2x-3 = 2*7-3 = 14-3 = 11

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7 0
3 years ago
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makkiz [27]
Just divide 262.5 and 3 1/2.

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7 0
4 years ago
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What is the slope of the line described by the equation below
Y_Kistochka [10]
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4 years ago
Melissa and Tomas are playing a game with complex numbers. If Melissa has a score of 5-4i and Tomas has a score of 3+2i, what is
Gemiola [76]
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3 0
3 years ago
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xz_007 [3.2K]

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1 x 5

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hope it helps!

4 0
3 years ago
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