please help me

The rate at which a mountain is eroding is given by y=0.5x, where y represents the amount of erosion in millimeters and x represents the amount of time in years. A field is eroding at a rate of 2 millimeters per year. Is the field or the mountain eroding at a faster rate? By how much?​

Answers

Answer 1

Answer:

Field

Field is eroding 4 times faster than the mountain.

Step-by-step explanation:

[tex]y[/tex] = The amount of erosion in millimeters

[tex]x[/tex] = Number of years passed

[tex]y=0.5x\\\Rightarrow \dfrac{y}{x}=0.5[/tex]

The rate at which soil is eroding in the mountain is 0.5 millimeters per year.

The rate at which the field is eroding is 2 millimeters per year.

The field is eroding faster than the mountain.

[tex]\dfrac{m_f}{m_m}=\dfrac{2}{0.5}\\\Rightarrow m_f=4m_m[/tex]

So the field is eroding 4 times faster than the mountain.


Related Questions

Which values are solutions of the inequality 5 Choose ALL that apply.


9 or 13 or 15 or 20

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Answer:

a i forgot

Step-by-step explanation:

60 minutes is what percentage of 1 hour?​

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Answer:

100%

Step-by-step explanation:

Answer: 100 is your answer hope this helped

plz make brainly

Step-by-step explanation:

Please help! Brainliest answer if you do!

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Answer:

C.

Step-by-step explanation:

Roberto orders 13 quarts of special BBQ sauce. It costs him a total of $206.57. write an equation that can be used to find how much each quart cost. solve the equation

Answers

9514 1404 393

Answer:

  13c = 206.57

Step-by-step explanation:

If c is the cost of 1 quart of sauce, then 13c is the cost of 13 quarts. We are told that is $206.57, so the equation is ...

  13c = $206.57

__

You may be required to leave the dollar sign out of the equation. If you leave it in, then the answer comes with its own units (dollars).

  c = $206.57/13 = $15.89

PLEASE HELPPP!! fill in the blank with + or -
reporting if you post a inappropriate comment.

Answers

Answer:

Top box is +, left box is +, right box is -, bottom box is +

Step-by-step explanation:

Hopefully that makes sense lol

I need help with this please help me out

Answers

Answer:

A and E

Step-by-step explanation:

hope that helps

Help with this please!

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*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: y + 4= 9/4(x - 3)

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

The answer is y+4: 9/4 ( x-3)

use the model below to write and solve equation

Answers

Answer is:

X is 1, very simple

Select all the true sentences!!!

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Answer:

the second one and third one

Step-by-step explanation:

Find the probability of selecting a vowel from the word “MATHEMATICS” [please help!!!!]​

Answers

There is a 4/11 chance that you will pick a vowel.

p-5 = 19
answer step by step & explain

Answers

Answer:

Step-by-step explanation:

Very simple.

p - 5 = 19

So to take out the -5 on that side, you must also do the same thing to the other side. So adding 5 in one side of the equal sign would mean you have to do the same thing on the other side of the equal sign.

SO:

p-5 +5 = 19+5

p = 24

P=26

26-5=19


(19+5 is also 26 so you can check your work that way)

Can someone solve this with explaining it

Answers

Answer:72

Step-by-step explanation:

72+37=109

180-109=72

I IS MATH

Answer:

72°+37°+x°=180°(being exterior angles)

109°+x°=180°

x°=180°-109°

x°=71°

Find the probability that a randomly selected points within a square falls in the blue shaded area (circle)

Answers

Answer:

78.8 %

Step-by-step explanation:

From the question,

Area of the square = L²

A = L²

Where L = Length of the square.

From the diagram,

L = 4 in

Therefore,

A = 4²

A = 16 in².

Also,

Area of the circle (A') = πr²

Where r = radius of the circle.

Given: r = 2 in

Therefore,

A' = 22/7(2²)

A = 12.6 in²

Hence,

The probability that a randomly selected points within a square falls in the blue shaded area (Pr) = A'/A

Pr = 12.6/16

Pr = 0.7875

Pr(%) = 78.75

Pr(%) = 78.8 %

which sentence best describes percy's rectangle ​

Answers

Umm I would say birds of a feather flock together

What is the area of this trapezoid?



Enter your answer in the box.

Answers

Answer:

80

Step-by-step explanation:

which statements are true about the multiplication division properties of rational expressions check all that apply ?

A. closure property of multiplication states that the product of two rational expressions as a rational expression

B. the commutative property only holds true for the multiplication of rational expressions

C. the associative property holds true for both multiplication and addition of rational expressions

D the associative property states that the way in which two or more factors are grouped in a product changes the value of the product

E. the properties of rational expression multiplication and division are parallel to the properties of rational number multiplication and division ​

Answers

Answer:

a and c statements are true

Step-by-step explanation:

closure property of multiplication states that the product of two rational expressions as a rational expression

C. the associative property holds true for both multiplication and addition of rational expressions

Answer:

The answer is a, b, and e

Step-by-step explanation:

50 POINTS: Please help thank you so much!! (Image attached) The polygons are similar. Find the values of the variables.

I know from the answer key that the answers are x=
3 \sqrt{10}310​
and y=
2 \sqrt{10}210​
but I'm not sure how to get there...​

Answers

Answer:

x = 3/5√10

y = 2√10

Step-by-step explanation:

using the Pythagorean theorem:

y² = 7² - 3² = 49 - 9

y² = 40

y = 2√10

3/4.5 = y/5x

4.5y = 15x

substitute for y:

4.5(2√10) = 15x

15x = 9√10

divide both sides of the equation by 15:

x = (9√10)/15 = 3/5√10

Show how to use substitution or elimination to solve the following system of equations. Write your solution as an ordered pair:
7x + y = 5 , 7x + y = -2

( , )

And please tell me if you used substitution or elimination. TYSM

Answers

Answer:

x=.5, y=-5.5

Step-by-step explanation:

7x+y=5, 7x+y=-2

Simplifing 7x+y=5 first

7x+y=5

y=-7x+5

Next, 7x+y=-2

7x+y=-2

y=-7x-2

Plugging in -7x+5 into y

-7x+5=-7x-2

-14x=-7

x=.5

Plugging .5 into y=-7x-2

y=-7(.5)-2

y=-3.5-2

y=-5.5

I used substitution if your couldn't tell

Hope it helps!

Brainliest maybe? :o

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Answers

Answer:

I believe both A and B are correct

Step-by-step explanation:

Answer:

diagram b

Step-by-step explanation:

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Answer:

the second answer is the answer

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Answer:

1.0 g element will be remaining after 19 minutes

Step-by-step explanation:

Answer:

1.0 g element will be remaining after 19 minutes

Step-by-step explanation:

what is the measure of ZDEG on circle O?​

Answers

Answer:

∠ DEG = 50°

Step-by-step explanation:

Angles on the circle subtended by the same arc are congruent.

∠ CFG and ∠ DEG are angles on the circle subtended by arc CD , then

∠ DEG = ∠ CFG = 50°

Answer:

50° parallel lines subtended on circumference theorem, and congruent angles seen as subtended on same arc lone examples attached.

A plant has an initial height of 1 inch and grows at a constant rate of 3 inches each month.A second plant that also grows at a constant rate has an initial height of 4 inches and is 28 inches tall after 1 year. After how many months are the plants the same height?

Answers

Answer:

3 MONTHS

Step-by-step explanation:

PLEASE MARK ME AS BRAINLIEST

Find the area of each regular polygon. Round your answer to the nearest tenth if necessary​

Answers

Answer:

Step-by-step explanation:

13). Area of a square = (Side)²

                                   = (BC)²

     Since, diagonals of a square bisect each other at 90°,

     ΔBOC is a right triangle.

     By applying Pythagoras theorem in the given triangle,

     BC² = OB² + OC²

     BC² = 2(OB)²

     BC² = 2(7√2)²

     BC = [tex]\sqrt{196}[/tex]

     Area of square ABCD = (BC)²

                                          = (√196)²

                                          = 196 units²

14). Measure of interior angles of the regular hexagon = 120°

     Area of the regular hexagon = [tex]\frac{3\sqrt{3}}{2}(\text{side})^2[/tex]

      From the given picture,

      m∠BAC = m∠ABC = m∠ACB = 60°

      Therefore, ΔABC is an isosceles triangle.

      And all sides of this triangle will be equal in measure.

      AB = AC = BC = 9 units

      Area of the given regular hexagon = [tex]\frac{3\sqrt{3}}{2}(9)^2[/tex]

                                                                 = 210.44 square units

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The sum of two numbers is10 . The difference is2 .

​Find the two numbers by creating a system of equations for the situation.
​Then, graph each linear equation.

​Finally, indicate the solution by marking the point of intersection.


show your answer in a graph​

Answers

Answer:

6 and 4

Step-by-step explanation:

Let the numbers are x and y.

Then the equations are:

x + y = 10 (blue line)x - y = 2 (red line)

The graph are attached with the intersection marked:

(6, 4)

Kerry has a 50% off coupon for GameStop. How much will a $35.95 game cost if he uses the coupon?
A.$28.71
B.$5.24
C233.00
D. None of the above

Answers

Answer:

D: None of the above because 35.95/2=17.975.

Step-by-step explanation:

Divide 35.95 by 2.

Answer: D. None of the above

Steps:
x = 35.95 - (35.95 * 50%)
x = 35.95 - (35.95 * 0.50)
x = 35.95 - 17.975
x = 17.975

Check:
17.975 = 35.95 - (35.95 * 50%)
17.975 = 35.95 - (35.95 * 0.50)
17.975 = 35.95 - 17.975
17.975 = 17.975 ✅

a first number plus twice a second number is 8 twice the first number plus the second totals 25

Answers

Answer:

x=14 y=-3

Step-by-step explanation:

15!!!! POINTSS what is the mode in the data shown below

Answers

Answer is 20, hope this helps BRAINLIEST?
Here is the other answer so that you can give the person above me brainest

A 180 pound weight is supported by two ropes each at 30 degrees, as shown in the figure. Find the tension in each rope.

Answers

Answer:

= 41.32N  

To find N amount

You find the kg weight then times it by 10 then divide that amount by 1/2

So that 180pounds = 81.6466 x 10kg

x10 = 816.466

81.6466 / 2 = 40.8233

sin(30) = 40.8233/T

T =  40.8233/sin (30) =  N / sin(30) = Tension = calculator = -41.3178070464 = 41.32 N

Solve for x. round to the nearest then tenth. Please help!!!

Answers

Answer:

13.7

Step-by-step explanation:

Answer:

x=36

Step-by-step explanation:

22+x=58

22-22= cross that out

58-22= 36

x=36

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