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ludmilkaskok [199]
3 years ago
15

How do you solve X-y=11 by elimination

Mathematics
1 answer:
Verdich [7]3 years ago
3 0

Answer: x=y+11

Step-by-step explanation:

Equation: x−y=11

Step 1. You need to add y to both sides.

x−y+y=11+y

x=y+11

Answer:

x=y+11

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Pleaseee helppp with thisss asappp
Hoochie [10]

We are given with a equation of Circle and we need to find it's radius and it's equation in standard form . But , let's recall , the standard equation of a circle is {\bf (x-h)^{2}+(y-k)^{2}=r^{2}} where <em>(h,k)</em> is the centre of the circle and radius is <em>r</em> . Proceeding further ;

{:\implies \quad \sf x^{2}+12y+22x+y^{2}-167=0}

Collecting <em>x</em> terms , y terms and transposing the constant to RHS ;

{:\implies \quad \sf (x^{2}+22x)+(y^{2}+12y)=167}

Now , as in standard equation their is a whole square , so we need to develop a whole square in LHS , for which we will use completing the square method , as coefficient of x² and y² is 1 , so adding 121 and 36 to LHS and RHS .

{:\implies \quad \sf (x^{2}+22x+121)+(y^{2}+12y+36)=167+121+36}

{:\implies \quad \sf (x+11)^{2}+(y+6)^{2}=324\quad \qquad \{\because a^{2}+2ab+b^{2}=(a+b)^{2}\}}

{:\implies \quad \bf \therefore \quad \underline{\underline{\{x-(-11)\}^{2}+\{y-(-6)\}^{2}=(18)^{2}}}}

On comparing this with the standard equation , we got our centre at <em>(-11,-6)</em> and radius is <em>18 units </em>

8 0
2 years ago
At a baseball game, Sheena bought a sandwich for $6.95 and two pretzels for $2.75 each. She paid with a $20 bill. How much chang
elixir [45]

Answer:

$7.55

Step-by-step explanation:

6.95+2.75+2.75=12.45

20-12.45=7.55

5 0
3 years ago
Read 2 more answers
Math help please right answer
kvasek [131]

Answer:

135°

Step-by-step explanation:

The sum of interior angles in this rectangle is equal to 720

Two of the angles are right (has 90°)

so 4x + 180 = 720 subtract 180 from both sides

4x = 540 divide both sides by 4

x = 135°

6 0
3 years ago
What two pencils do i need to move to make three triangles?
asambeis [7]
Would this work? Hope it helps

6 0
3 years ago
Tom has a water tank that holds 5 gallons of water.Tom uses water from a full tank to fill 6 bottles that each hold 16 ounces an
REY [17]
1/2 Gallon is equal to 64 ounces
16 x 6 = 96
96 + 64 = 160
5 gallons is equal to 640
640 - 160 = 480
7 0
3 years ago
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