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Nutka1998 [239]
3 years ago
13

Solve the equation for x.

Mathematics
2 answers:
Alenkasestr [34]3 years ago
6 0
We move all terms to the left:

9(2x+15)-(45)=0

We multiply parentheses

18x+135-45=0

We add all the numbers together, and all the variables

18x+90=0

We move all terms containing x to the left, all other terms to the right

18x=-90

x=-90/18

x=-5

(Source: Geteasysolution.com)

(Mark this as the brainliest if it helps!)





Keith_Richards [23]3 years ago
3 0

Answer:

-5

Step-by-step explanation:

  • 9(2x+15)=45
  • 18x+135=45
  • 18x=45-135
  • 18x=-90
  • x=-90/18
  • x=-5
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Write the equation of the line parallel to 2x - 6y = 12 that passes through the point ( -1, 4).​
vlada-n [284]

Answer:

y = 1/3x + 4 1/3

Step-by-step explanation:

2x - 6y = 12

First find the slope

Solve for y

Subtract 2x

2x - 6y -2x= 12-2x

-6y = -2x+12

Divide by -6

-6y/-6 =-2x/-6 +12/-6

y = 1/3 x -2

The slope is 1/3

Parallel lines have the same slope

Using the slope intercept form y = mx+b where m is the slope and b is the y intercept

y = 1/3x +b

And substituting in the point

4 = 1/3 (-1) +b

4 = -1/3 +b

Add 1/3 to each side

4 + 1/3 = b

y = 1/3x + 4 1/3

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3 years ago
Please help, I will give brainliest!!
spayn [35]
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3 years ago
The perpendicular bisectors of triangle JKL are line segment PT, line segment QT, and line segment RT. Name three isosceles tria
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9514 1404 393

Answer:

  JKT, JLT, KLT

Step-by-step explanation:

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7 0
3 years ago
For example, Let's say I am graphing a proportional relationship even If it doesn't go through origin and it is an equivalent ra
Lostsunrise [7]

A proportional relationship is described by the equation

... y = k·x

The point (x, y) = (0, 0) is <em>always</em> a solution to this equation.

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6 0
3 years ago
Luis wants to buy a skateboard that usually sells for $135. At big AL's they are discounted 20%. What is the total cost of the s
tino4ka555 [31]

Answer:

117.99

Step-by-step explanation:

First step is to find the discount

Discount = original price * discount rate

               = 135 * 20%

                = 135*.20

                 =27

Take the discount from the original price and that is the new price

new price = original price - discount

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The final price is the new price plus the tax

final price = new price + tax

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