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Natali [406]
3 years ago
14

Solve for x. 5+(x-2)=-8

Mathematics
2 answers:
Arte-miy333 [17]3 years ago
7 0

Answer:

x = -11

Step-by-step explanation:

First, get rid of parentheses:

5 + x - 2 = -8

Then, simplify:

3 + x = -8

Finally, subtract 3 on both sides:

x = -11

Hope this helps ^^

photoshop1234 [79]3 years ago
4 0

Answer:

x = -11

Step-by-step explanation:

5+(x-2)=-8

3+x = -8

Subtract 3 from each side

3+x-3 = -8-3

x = -11

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Arnie’s car used 100 cups of gasoline during a drive he paid 3.12 per gallon for gas how much did the gas cost
patriot [66]

Answer:

$19.50

Step-by-step explanation:

First, we find the number of gallons in 100 cups.

1 gallon = 16 cups

100 cups * (1 gallon)/(16 cups) = 6.25 gallons

100 cups is the same as 6.25 gallons.

Now we multiply the number of gallons by the cost per gallon.

6.25 gallons * 3.12 $/gallon = $19.50


4 0
3 years ago
Solve using elimination method
Anon25 [30]
X+y=8
2x^2-y=-5
elimination method means you link the 2 equations together to make one
these two already have y in the perfect form where you can cancel it out +y and -y so no need to perform any other action to a certain equation.. all you need to do is add them now
2x^2+x=3
7 0
3 years ago
What is the line of SYMMETRY for they PARABLLA who’s equation is y=3x2+24x-1?
Arada [10]

Answer

The line of symmetry x = -4

Step by step explanation

Here we have to use the formula.

The symmetry of a parabola x = -b/2a

Now compare the given equation y = 3x^2 + 24x -1 with the general form y = ax^2 + bx + c and identify the value of "a" and "b"


Here a = 3 and b = 24. Now plug in these values in to the formula to find the line of symmetry.

x = -24/ 2(3)

x = -24/6

x = -4

Therefore, the line of symmetry x = -4.

Thank you.

6 0
3 years ago
10. Solve the following equations<br><br> a) Cos Ɵ = -1/2<br><br><br><br><br> b) -18 Sin Ɵ + 9 = 0
Olenka [21]

Answer:

what is cos and sin ?

Step-by-step explanation:

4 0
2 years ago
Lana draws a triangle( LMN) on the coordinate plane. What is the perimeter of the triangle( LMN)? Round to the nearest unit.
lys-0071 [83]

Answer:

The answer is "25".

Step-by-step explanation:

Please find the graph in the attachment.

Longest \ side= 12

Calculating the triangle two other sides:

=\sqrt{3^2+6^2}\\\\=(9+36)\\\\=45

let

\to \sqrt{45}= 6.7.\\\\\to 6.7\times 2=13.4\\\\\to 13.4+12=25.4 \approx 25

6 0
2 years ago
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