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dedylja [7]
2 years ago
8

Help help help helpppp​

Mathematics
2 answers:
BARSIC [14]2 years ago
6 0

Answer:

x = 20

Step-by-step explanation:

The 3 angles lie on a straight line and sum to 180° , that is

3x + 80 + 2x = 180

5x + 80 = 180 ( subtract 80 from both sides )

5x = 100 ( divide both sides by 5 )

x = 20

loris [4]2 years ago
6 0

Answer:

Here,3x°+80°+2x=180° [Angles on a line]

or,3x°+2x°+80°=180°

or,5x°+80°=180°

or,5x°=180°-80°

or,5x°=100°

or,x°=100/5

Therefore,x°=20°

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The wale school has the lower student teacher ratio
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4 years ago
What's the equation for twice the difference of a number and 6 is equal to three times the sum of the number and 3
alukav5142 [94]
2(x-6)=3(x+3)

Let's solve your equation step-by-step.

<span><span>2<span>(<span>x−6</span>)</span></span>=<span>3<span>(<span>x+3</span>)

</span></span></span>Step 1: Simplify both sides of the equation.

<span><span>2<span>(<span>x−6</span>)</span></span>=<span>3<span>(<span>x+3</span>)

</span></span></span><span>Simplify: (Show steps)

</span><span><span><span>2x</span>−12</span>=<span><span>3x</span>+9

</span></span>Step 2: Subtract 3x from both sides.

<span><span><span><span>2x</span>−12</span>−<span>3x</span></span>=<span><span><span>3x</span>+9</span>−<span>3x

</span></span></span><span><span><span>−x</span>−12</span>=9

</span>Step 3: Add 12 to both sides.

<span><span><span><span>−x</span>−12</span>+12</span>=<span>9+12

</span></span><span><span>−x</span>=21

</span>Step 4: Divide both sides by -1.

<span><span><span>−x/</span><span>−1</span></span>=<span>21/<span>−1

</span></span></span><span>x=<span>−21

</span></span>Answer:

<span>x=<span>−<span>21</span></span></span>
8 0
3 years ago
Krutika, David and Mark share some sweets in the ratio
Aneli [31]

Answer:

120

Step-by-step explanation:

Krutika:48

David: 48

Mark: 48÷2= 24

Because 2 : 2 : 1

48+48+24=120

3 0
3 years ago
The center of a circle is at (-7, -2) and the radius is 7. What is the equation of the circle in standard form?
Liono4ka [1.6K]

Answer:

<h2>(x + 7)² + (y + 2)² = 49</h2>

Step-by-step explanation:

The standard form of an equation of a circle:

(x-h)^2+(y-k)^2=r^2

(h, k) - center

r - radius

We have:

center (-7, -2) → h = -7 and k = -2

radius r = 7.

Substitute:

(x-(-7))^2+(y-(-2))^2=7^2\\\\(x+7)^2+(y+2)^2=49

8 0
3 years ago
Help. Was not here today.
Elza [17]
If 205 is a posible answer I think thats's it
Because it's just like multiplucation 41x1=41
                                                        42x2=82.......etc.
                                                       42x5=205
6 0
3 years ago
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