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Alex Ar [27]
3 years ago
12

-4x+6y=-30 solve the equation​

Mathematics
1 answer:
deff fn [24]3 years ago
3 0

Answer:

Step-by-step explanation:

Goal 1:  Solve for x:  Subtract 6y from both sides.  This yields -4x = -6y - 30.

Change all the signs to +.  We get 4x = 6y + 30.  Dividing all terms by 4 yields x = (3/2)y + 15/2.

Goal 2:  Solve for y.  Add 4x to both sides.  Then 6y = 4x - 30, or y = (2/3)x - 5

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Will someone please help me here
frez [133]

Hey!

You have to divide the total amount she has by the surface area.

Surface area = 2(wl+hl+hw)

That gives you:

(15 + 18 + 30) \times 2 \\ 63 \times 2 = 126

The surface area is 126 ft. Now divide the total amount she has by the surface area.

1,134 \div 126 = 9

<em>That means she can cover 9 boxes</em>

\framebox{She can cover 9 boxes}

8 0
3 years ago
I NEED HELP!!! PLEASE ANSWER THESE QUESTIONS!
Tanya [424]
Okay just ask and I got you man
8 0
3 years ago
GIVEN PARALLELOGRAM ABCD, FIND THE LENGTHS AND ANGLES REQUIRED
Scrat [10]
Co-interior properties. 180 degrees = two co-interior angles.

180 = (2y+50) + (3y+40)
180 = 5y + 90
90 = 5y
/5     /5
18 = y

Angle 1: 2y + 50
              2(18) + 50
              36 + 50
              86

Angle 2: 3y + 40
              3(18) + 40
              54 + 40
              94

86 + 94 = 180 so it is true.

Now the sides.
On a parallelogram, 5x+2 and 8x-7 must be equal

5x + 2 = 8x - 7
        2 = 3x - 7
        9 = 3x
       /3    /3
        3 = x

Side 1: 5x + 2
            5(3) + 2
           15 + 2
           17

Side 2: 8x - 7
            8(3) - 7
            24 - 7
            17

Both sides are equal; 17.

Angle 1: 86
Angle 2: 94
Sides: 17
6 0
3 years ago
What is the product?<br><br>​
steposvetlana [31]

Answer:

it a item

Step-by-step explanation:

5 0
3 years ago
Definition: A word or phrase used to show division in a word problem.
myrzilka [38]
I think the word is "each". im not very sure.


8 0
3 years ago
Read 2 more answers
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