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rjkz [21]
3 years ago
5

35 POINTS!!! The measures of the angles in a quadrilateral are represented by x, 2x, 3x, and 3x. Write an equation that would al

low you to solve for the value of x. Solve for the value of x
Mathematics
1 answer:
Marina86 [1]3 years ago
6 0

Answer:

The value of x is 40.

Step-by-step explanation:

The measures of the angles in a quadrilateral are represented by x, 2x, 3x, and 3x.

According to the angle sum property of quadrilateral, the sum of interior angles of a quadrilateral is always 360 degree.

Since the measures of the angles in a quadrilateral are represented by x, 2x, 3x, and 3x, therefore

x+2x+3x+3x=360

This is the equation which is used to solve for the value of x.

9x=360

x=\frac{360}{9}

x=40

Therefore the value of x is 40.

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Donna is on the swim team. Each week she swims a total of 8000 meters. How many kilometers does she swim each week? Be sure to i
aivan3 [116]

Answer:

Donna swims 8 km each week.

Step-by-step explanation:

To be able to find the answer, you have to consider that 1 km is equal to 1000 meters and with this, you can use  rule of three to find the kilometers in 8000 meters:

1 km  →  1000 meters

  x    ←   8000 meters

x=(1*8000)/1000=8 km

According to this, the answer is that Donna swims 8 km each week.

7 0
3 years ago
Solve each system by substitution.<br> 1) y = 2x + 2<br> y = -5x + 16
dalvyx [7]

Answer:

y = 6

x = 2

Step-by-step explanation:

rearrange the first equation in terms of x

x = (y - 2)/2

substiute x in the second equation

y = -5[(y-2)/2] +16

Now simpilify and solve for y

y = (-5y + 10)/2 +16

y = -5/2y + 5 + 16

y + 5/2y = 5 + 16

3.5y = 21

y = 6

Now substitue y in the first equation to solve for x

x = (6 - 2)/2

x = 2

5 0
3 years ago
Read 2 more answers
Which ordered pairs in the form (x, y) are solutions to the equation 7x−5y=28 ? Select each correct answer. <br>(7, 9) <br>(−1, 
dsp73
Trere are two correct answers.That are (-1,-7) and (-6,-14)
5 0
3 years ago
please help me- this along with the last one and many more are worth a project grade and i need to pass school- quq
Alex

Each person would get \frac{5}{8} pizza.

Solution:

Total quantity of pizza = 1\frac{7}{8}

Number of persons shared = 3

To find how much pizza would each person get:

Let us first convert  improper fraction into mixed fraction.

$1\frac{7}{8}=\frac{1\times8 + 7}{8}=\frac{15}{8}

Now divide the total quantity of pizza by the number persons shared.

$\text{Quantity of pizza each person get}=\frac{(\frac{15}{8}) }{3}

                                                    $=\frac{15}{8\times3}

                                                    $=\frac{15}{24}

Divide both numerator and denominator by 3.

                                                    $=\frac{15\div3}{24\div3}

                                                    $=\frac{5}{8}

Quantity of pizza each person get = \frac{5}{8}

Hence each person would get \frac{5}{8} pizza.

5 0
3 years ago
Find the equation using the point-slope formula:<br> (4, 3) m = -3
natita [175]

Answer:

y = 2/3x - 3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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