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3 years ago

14x+6=2 (5+7x) Please solve with work

Mathematics

1 answer:

liraira [26]3 years ago

3 0

Answer:

-6

Step-by-step explanation:

14x+6=2(5+7x)

14x+6=10+14x

14x-14x=10-16

x= -6

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Anika is hiking on a rectengular trail at the nation park there are four resting spots along the corners of the trail on the map

Drupady [299]

Answer:

The perimeter is 14 units

Step-by-step explanation:

Given

$A = (-2,2)$

$B = (1,2)$

$C = (1,-2)$

$D = (-2,-2)$

Required

Determine the perimeter

To do this, we simply calculate the distance between the sides of the rectangle i.e. AB, BC, CD and DA.

Distance (d) is calculated using:

$d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}$

For AB

$A = (-2,2)$ --- $(x_1,y_1)$

$B = (1,2)$ --- $(x_2,y_2)$

$AB = \sqrt{(-2 - 1)^2 + (2 - 2)^2} = \sqrt{9} = 3$

For BC

$B = (1,2)$ --- $(x_1,y_1)$

$C = (1,-2)$ --- $(x_2,y_2)$

$BC = \sqrt{(1-1)^2 + (2--2)^2} = \sqrt{16} = 4$

For CD

$C = (1,-2)$ --- $(x_1,y_1)$

$D = (-2,-2)$ --- $(x_2,y_2)$

$CD = \sqrt{(1 - -2)^2 + (-2 -- 2)^2} = \sqrt{9} = 3$

For DA

$D = (-2,-2)$ --- $(x_1,y_1)$

$A = (-2,2)$ --- $(x_2,y_2)$

$DA = \sqrt{(-2--2)^2 + (-2-2)^2} = \sqrt{16} = 4$

So, the perimeter (P) is:

$P = AB + BC + CD + DA$

$P = 3 +4 + 3 + 4$

$P = 14$

<em>The perimeter is 14 units</em>

5 0

3 years ago

In your class seven students do not receive a weekly allowance, Five students receive three dollars, Seven students receive five

olya-2409 [2.1K]

Answer:

$\large \boxed{\text{\$3.50}}$

Step-by-step explanation:

The mean is the sum of the allowances divided by the number of students.

$\text{Mean}= \dfrac{7(0) + 5(3) + 7(5) + 3(6) + 2(8)}{24}= \dfrac{0 + 15 + 35 + 18 + 16}{24} = \mathbf{3.50}\\\text{The mean weekly allowance is $\large \boxed{\textbf{\$3.50}}$}$

4 0

3 years ago

Kim has 132 pieces of candy. She gave Makayla 24 pieces of

vfiekz [6]

Answer:

Step-by-step explanation:

132 - 24 = 108

108 - (24+4) = 80

5 0

3 years ago

Need help also.......

Schach [20]

Answer:

Step-by-step explanation:

$\frac{QT}{Q'T'}=\frac{1}{2}\\$

Scale factor:

1:2

7 0

3 years ago

A runner with a mass of 62 kg running at a speed of 0.8 m/s.

wariber [46]

Answer: KE= 1984 j

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3 years ago