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harkovskaia [24]
2 years ago
5

Please Help 6-10 or just one of them

Mathematics
1 answer:
Free_Kalibri [48]2 years ago
5 0

Answer:

6) 20

7) I think is 2.5 (im not sure)

8) 7

Step-by-step explanation:

6) (5x+9)+(3x+11)=180

    8x+20=180

         -20   -20

          8x=160

Divide 8 on each side

            x=20

7) (17x+1)=(20x-14)

   17x+15 =20x

   +17         +17

     15 = 37x

divide 15 on each side

X=2.5

8) (3x+3)+(10-4)=90

    (3x)+(10x-1)

      13x-`1=90

            +1   +1

         13x=91

Divide 13 on each side

x=7

You might be interested in
Center: (10,-10)
vova2212 [387]

This is the standard form equation \frac{(x - 10)^2}{100} + \frac{(y + 10)^2}{-100} = 1

What is the ellipse?

The equation for an ellipse is typically written as x² a²  + y² b² = 1. x²  a² + y² b²  = 1. An ellipse with its origin at the center is defined by this equation. The ellipse is stretched further in both the horizontal and vertical directions if a > b, a > b, and if b > a, b > a, respectively.

The standard form of the equation of an ellipse with center (h, k)and major axis parallel to the x-axis is:

\frac{(x - h)^2}{a^2} + \frac{(y - k)^2}{b^2} = 1

where,

a > b

the length of the major axis is 2a

the coordinates of the vertices are (h±a,k)

the length of the minor axis is 2b

the coordinates of the co-vertices are (h,k±b)

the coordinates of the foci are (h±c,k),

where c² = a² − b².

so,

\frac{(x - 10)^2}{100} + \frac{(y + 10)^2}{-100} = 1

Hence, this is the standard form equation \frac{(x - 10)^2}{100} + \frac{(y + 10)^2}{-100} = 1.

To learn more about ellipse, visit

brainly.com/question/16904744

#SPJ1

7 0
1 year ago
Please help me click the picture to see
artcher [175]
0.25x+97
Factoring:
Convert 0.25 to a fraction:
1/4x+97
Factor out 1/4:
Solution:
1/4(x+388) or 0.25(x+388)
6 0
3 years ago
Can someone Help me in this problem?
Fed [463]
If you have to write the equation then it would be "5k + 6.7"
5 0
3 years ago
A bank balance is more than $35. Julia wants to write an inequality for the bank balance. Which inequality symbol should she use
Aleks04 [339]
X>35 meaning that it is greater than
5 0
2 years ago
Read 2 more answers
110% of 90 is what number a ?<br><br>? = 110 over 100<br>please help​
densk [106]

Answer:

90 is the orrect answer because I said so

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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