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kogti [31]
3 years ago
15

Solve for x. 3x-6 130 8x+4

Mathematics
2 answers:
olganol [36]3 years ago
7 0

Answer: <em>x = 12</em>

Step-by-step explanation:

<em>(180 - 130) + (3x - 6) + (8x + 4) = 180</em>

<em>180 - 130 + 3x - 6 + 8x + 4 = 180</em>

<em>48 + 11x = 180</em>

<em>48 + 11x - 48 = 180 - 48</em>

<em>11x = 132</em>

<em>11x ÷ 11 = 132 ÷ 11</em>

<em>x = 12</em>

kobusy [5.1K]3 years ago
3 0

Answer:

x = 12

Step-by-step explanation:

From the diagram, we are given one angle on a straight line, which is 130 degrees.  We know that a straight line is 180 degrees, so we can find the angle directly opposite the given one:

180 - 130 = 50

We also know that the interior angles of a triangle must add up to 180.  In addition, we know that vertical angles are always congruent.

Given this information, we can now write an equation, in terms of x, for all the angles inside this triangle:

180 = (3x - 6) + (8x + 4) + 50

We now do basic algebra to solve for x:

180 = 11x + 48

132 = 11x

12 = x

And therefore x = 12.

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Mr.Cooper has 3pails with golf balls in them.The first pail has 87ball.The second has 105golf balls and the third has 113golf ba
qwelly [4]

The total number of golf balls that Mr.Cooper has in the 3 pails is 305

<h3><u>Solution:</u></h3>

It is given that Mr. Cooper has 3 pails with golf balls in them.

The first pail has 87 ball

The second has 105 golf balls and the third has 113 golf balls.  

We need to find the total number of golf balls that Mr. Cooper has in the 3 pails.

To find the total number of golf balls we need to add the number of balls in each pail.

<em>Total number of golf balls in 3 pails = number of balls in first pail + number of balls in second pail + number of balls in third pail</em>

Total number of golf balls = 87+105+113

= 305 balls

Therefore, the total number of golf balls in all 3 pails combined it 305

3 0
3 years ago
What are the roots of the equation 9x2 – 36x +37<br> O in simplest a + bí form?
Svetlanka [38]

Answer:

  x = 2+1/3i or 2-1/3i

Step-by-step explanation:

The equation of interest can be written in vertex form as ...

  9(x -2)² +1 = 0

so its solutions can be found by subtracting 1, dividing by 9, taking the square root, then adding 2.

  x = 2 ± √(-1/9)

In the desired form, the zeros of the given expression are ...

  x = 2 +1/3i or 2 -1/3i

5 0
3 years ago
Carl wants to buy a television that costs $500, including taxes. To pay for the television , he will use a payment plan that req
Harrizon [31]

Answer:

(B) 12%

Step-by-step explanation:

Original cost of the television = $500

Cost using the payment plan = Down payment + EMI's for 6 months

                                                  = $124 +72.5*6

                                                  = $560

Percentage increase = \frac{New cost (using payment plan)-original cost}{original cost}*100

                                 = \frac{560-500}{500} *100

                                 =  60/5

                                 = 12%

Hence, the percent increase from the original cost of the television to the cost of television using the payment plan = 12% (C)

5 0
3 years ago
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Answer:

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