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77julia77 [94]
3 years ago
10

Find measure dbc 19 22 23 161 HELP !!!

Mathematics
1 answer:
iren2701 [21]3 years ago
4 0
Angles ABD and DBC are supplementary.  They are also a linear pair because they share a ray.  Supplementary angles add up to equal 180, as do linear pairs. Therefore, from our picture, 7x + x - 4 = 180.  8x = 184.  Therefore, x = 157.  157-4 = ∠DBC, so ∠DBC = 153.
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A) -x + 9 = 56 <br> Solve and verify
leonid [27]

Answer:

-47

Step-by-step explanation:

-x + 9 = 56\\-x = 56-9\\-x = 47\\x = -47 \\\\Verification:\\LHS= - x+9 = -(-47) +9 = 47+9 = 56 = RHS

3 0
3 years ago
I cant find the value of x
Aloiza [94]

Answer:

8+6x=30+4x+2 The answer is 12

Step-by-step explanation:

Reason - The sum of opposite interior of a triangle is equal to opposite exterior angle .

6 0
3 years ago
the ratio of green food coloring to blue food coloring is 1:2.if we use 6 drops of blue ,how many drops of green will we need.
lubasha [3.4K]
12 because 1:2 so times 6 we get 6:12
6 0
3 years ago
Read 2 more answers
Which two numbers have a sum of 15 and a product of 36
Aliun [14]

Answer:

3 and 12

Step-by-step explanation:

let the 2 numbers be x and y then

x + y = 15 → (1)

xy = 36 → (2)

From (1) : y = 15 - x → (3)

substitute y = 15 - x into (2)

x(15 - x) = 36

15x - x² = 36 ( subtract 36 from both sides )

15x - x² - 36 = 0 ( multiply through by - 1 and arrange in standard form )

x² - 15x + 36 = 0 ← in standard form

(x - 3)(x - 12) = 0 ← in factored form

equate each factor to zero and solve for x

x - 3 = 0 ⇒ x = 3

x - 12 = 0 ⇒ x = 12

substitute these values into (3) for corresponding value of y

x = 3 → y = 15 - 3 = 12

x = 12 → y = 15 - 12 = 3

Hence the 2 numbers are 3 and 12


6 0
3 years ago
The length of a rectangle is 10 inches longer than the width. The perimeter is 56 inches. Find the length and the width of the r
goldfiish [28.3K]

Answer:

Length=19\,inches\\\\Width=9\,inches

Step-by-step explanation:

Let, the length of the rectangle be 'L',

Width of the rectangle be 'W'

L=(W+10)\,inches

Perimeter of the rectangle= 56\,inches

Perimeter of the rectangle= 2(Length+Width)

                     56=2(W+10+W)\\\\\dfrac{56}{2} =W+10+W\\\\28=2W+10\\\\28-10=2W\\\\18=2W\\\\W=\dfrac{18}{2}\\\\ W=9\,inches

As,

     L=(W+10)\,inches

     L=9+10\\\\L=19\,inches

Length=19\,inches\\\\Width=9\,inches

7 0
3 years ago
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