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vfiekz [6]
3 years ago
6

Aaron’s age is three years less than Devon‘s age the sum of their ages is 31 find each of their ages

Mathematics
1 answer:
Goryan [66]3 years ago
6 0
  • Answer:

<em>Aaron 14 years</em>

<em>Devon 17 years</em>

  • Step-by-step explanation:

<em>D = A + 3</em>

<em>D + A = 31</em>

<em>replace D</em>

<em>A + 3 + A = 31</em>

<em>2A = 31 - 3</em>

<em>2A = 28</em>

<em>A = 14 years</em>

<em>D = 17 years</em>

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The coordinates of the midpoint of gh are m(-13/2,-6) and the coordinates of one endpoint are g(-4,1). what is the other endpoin
Alex777 [14]

Applying the midpoint formula, the coordinates of the other endpoint are: (-9, -13).

<h3>How to Apply the Midpoint Formula?</h3>

The midpoint formula, which can be used in determining the coordinates of the midpoint between two endpoints is usually expressed as: M[(x1 + x2)/2, (y1 + y2)/2].

Given the following coordinates:

Midpoint of GH --> m(-13/2,-6) = (x, y)

One endpoint ---> G(-4, 1) = (x1, y1)

The other endpoint ---> (x2, y2)

Plug in the values into the formula used in calculating the midpoint:

m(-13/2,-6) = [(-4 + x2)/2, (1 + y2)/2]

Solve for x2

-13/2 = (-4 + x2)/2

-13/2 × 2 = -4 + x2

-13 = -4 + x2

-13 + 4 = x2

-9 = x2

x2 = -9

Solve for y2

-6 = (1 + y2)/2

2(-6) = 1 + y2

-12 = 1 + y2

-12 - 1 = y2

-13 = y2

y2 = -13

Thus, using the midpoint formula, the coordinates of the other endpoint are: (-9, -13).

Learn more about the midpoint formula on:

brainly.com/question/13115533

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4 0
1 year ago
What’s the correct answer
Trava [24]
I think it’s B but I’m not sure
6 0
3 years ago
Determine the solution, if any, to the system of equations below
meriva

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Step-by-step explanation:

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1 year ago
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Step-by-step explanation:

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2 years ago
Find MN to the nearest tenth?<br><br> A. 11.34<br> B. 16.1<br> C. 39.6<br> D. 23.8
Nana76 [90]

As the question say this problem is a practice of the law of cosines!

The law of cosine: c^2=a^2+b^2-2ab*cos*c for any side a, b and c

The law can also be written as c=sqrt(a^2+b^2-2abcosc)

Now use this formula!(note cos 100 degrees is about 0.8623)

c=sqrt(15^2+16^2-2*15*16*cos100)

solving this we can MN is about 23.75

Round this to the nearest tenths now!

We get 23.8!

Thus the answer is D

5 0
2 years ago
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