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3 years ago

3x + 5 = 5x - 11. What is the value of x in this equation.

Mathematics

2 answers:

Nesterboy [21]3 years ago

7 0

Answer:

X=8

Step-by-step explanation:

3x+5=5x-11

-3x = -3x Subtract the 3x from both sides

5 = 2x-11 You will end up with 5 on the left and 2x-11 on the right

+11 = +11 Add 11 to both sides to get rid of 11 on the right

16 =2x you will end up with 16=2x

16/2=2/2 Lastly divide 2 on both sides

8=x You will end up with the answer as x=8

svlad2 [7]3 years ago

5 0

Make sure that when you bring a number to the other side of the equal sign, you need to change from + to - or from - to +

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The perimeter of a triangle is 104 units. The combined length of two of the sides of the triangle is 64 units.

valkas [14]

Answer:

Step-by-step explanation:

168

7 0

1 year ago

1. Among 806 people asked which is there favorite seat on a plane, 492 chose the window seat, 8 chose the middle seat, and 306 c

prisoha [69]

Answer:

See explanation

Step-by-step explanation:

Among 806 people asked which is there favorite seat on a plane, 492 chose the window seat, 8 chose the middle seat, and 306 chose the aisle seat, then

$P(\text{Window seat})=\dfrac{492}{806}=\dfrac{246}{403}\\ \\P(\text{Middle seat})=\dfrac{8}{806}=\dfrac{4}{403}\\ \\P(\text{Aisle seat})=\dfrac{306}{806}=\dfrac{153}{403}$

a) One randomly selected person preferes aisle seat with probability

$\dfrac{153}{403}$

b) Two randomly selected people both prefer aisle seat (with replacement) is

$\dfrac{306}{806}\cdot \dfrac{306}{806}=\dfrac{153}{403}\cdot \dfrac{153}{403}=\dfrac{23,409}{162,409}$

c) Two randomly selected people both prefer aisle seat (without replacement) is

$\dfrac{306}{806}\cdot \dfrac{305}{805}=\dfrac{153}{403}\cdot \dfrac{61}{161}=\dfrac{9,333}{64,883}$

8 0

2 years ago

lily pads increase by 25% very 10days. if a pond starts 22 lilly pads, how many will there be after 50 days

Mars2501 [29]

Step-by-step explanation:

This is an exponential increase. As represented in the picture, approximately 77 lilly pads will be produced after 50 days when there is initial of 22.

7 0

2 years ago

Graph a direct variation function that goes through the point (-2, -6). what is the slope

Effectus [21]

Answer:

The slope is 3.

Step-by-step explanation:

A direct variation function will always go through the origin point (0, 0).

Therefore, we have the two points (0, 0) and (-2, -6).

We can use the slope formula to find the slope:

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Substitute and evaluate:

$\displaystyle m=\frac{0-(-6)}{0-(-2)}=\frac{6}{2}=3$

Therefore, the slope of the function is 3.

To graph, simply plot (0, 0) and (-2, -6) and draw a line connecting them. This is shown below.

6 0

2 years ago

Read 2 more answers

Please help me find the length!!

galben [10]

So, this would be a common circle question.

First, 20 degrees from a circle's curcumference would be 20/360, which is 1/18.

This means that the length of the arc of AB should be 1/18 of the circumference.

The formula for the circumference it 2pi*r

2*pi*27=54pi

54pi* 1/18= 6 pi

8 0

3 years ago