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Alenkinab [10]
3 years ago
10

The area of a rectangular wall of a barn is 54 feet. It’s length is 12 feet longer than twice it’s width. Find the length and wi

dth of the wall of the barn.
Mathematics
1 answer:
matrenka [14]3 years ago
6 0

Answer:the width is 3 feet

Step-by-step explanation:

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Two glasses of milk and three snack bars have a total of 72 carbs. and 4 glasses of milk and 2 snack bars have a total of 88 car
melisa1 [442]

Answer:

one glass of milk = 15 carbs

one bar = 14 carbs

Step-by-step explanation:

let 'm' = one glass of milk

let 'b' = one snack bar

system of equations:

2m + 3b = 72

4m + 2b = 88

I used the elimination method and multiplied the 1st equation by -2

  -4m - 6b = -144

+  <u>4m + 2b =  88</u>

           -4b = -56

              b = 14

now solve for 'm'

2m + 3(14) = 72

2m + 42 = 72

2m = 30

m = 15

7 0
3 years ago
Point B has coordinates ​(3​,2​). The​ x-coordinate of point A is −6. The distance between point A and point B is 15 units. What
xxTIMURxx [149]

Answer:

Distance between two points= √(x2-x1)²+(y2-y1)²

D= 15units

Let "k" be the y-coordinate of A

A(-6,k)

B(3,2)

15= √(3--6)²+(2-k)²

Taking square of both sides to eliminate the square root.

15²=(9)²+(2-k)²

225=81+4-4k+k²

k²-4k - 140=0

Using Quadratic Formula to evaluate

k= 14 or k=-10

The Possible coordinates of A are

(-6,14) or (-6,-10)

4 0
3 years ago
Evaluate (-4^2) - (3 *4) + 9
Elanso [62]

-19

-4 * -4 - 12 + 9

-16-12 +9

-28 + 9

5 0
3 years ago
Add.<br> −4+8/3/<br> Enter your answer as a simplified fraction by filling in the boxes.
GalinKa [24]

Answer:

1 1/3 make 2 boxes and make 2 lines and sade 1 full box and 1 3rd of the other box

Step-by-step explanation:

-4+8/3 = 4/3 = 1 1/3

5 0
2 years ago
Write an equation in slope intercept form of the line that passes through the points (2.6) and (-4,-2).
Katena32 [7]
Not sure if this is the right answer but try math-way it helps me a lot.

8 0
3 years ago
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