1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zanzabum
3 years ago
6

A sand dune stands 5 feet above sea level. The hill is eroding at a rate of 1 foot per 20 years. Let y represent the height of t

he sand dune after x years. Which equation represents the situation?
Mathematics
2 answers:
Soloha48 [4]3 years ago
7 0

Answer:

y=-\frac{1}{20}x+5

Step-by-step explanation:

Here we are given that the present height of the sand dune is 5 ft and it is eroding 1 ft in every 20 years. If x represent the number of years and y represents the height of the sand dune. Hence we can consider the coordinates be (0,5) (20,4) (40,3) (60,2) (80,1) (100,0)

Let us evaluate the equation of the line plotted on these coordinates

Here we can see the y intercept is 5

Let us find the slope

m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{5-4}{0-20}\\m=\frac{1}{-20}\\m=-\frac{1}{20}

The equation in slope intercept form is given as

y=mx+c

where c is y intercept i.e. 5

y=-\frac{1}{20}x+5

Hence this is our required equation

avanturin [10]3 years ago
4 0
y = -1/2x + 5 should be your equation because it is 5 ft above sea level and its eroding, or going down, 1 ft per 20 years. So every year, the sand dune erodes 1/20 ft more.

Hope this helps!
You might be interested in
What is the answer to both of these?
Law Incorporation [45]

Answer:

The answer for 24 is B, so its 7.50

3 0
2 years ago
I need a little bit of help here ☹️
Grace [21]
-3(y+2)^2 - 5 + 6y
= -3(y^2 + 4y + 4) - 5 + 6y
= -3y^2 - 12y - 12 - 5 + 6y
= -y^2 - 6y - 17

Answer
(-1) y^2 + (-6) y + (-17)
3 0
3 years ago
Logan walked 2 1/2 miles on Monday and she walked<br> 6 miles. How far did she walk on Tuesday?
Anon25 [30]

Answer:

3 1/2 miles

Step-by-step explanation:

because 6 - 2 1/2 = 3 1/2

5 0
2 years ago
QUESTION 1 1 POINT<br> Factor: 27m3<br> 64.<br> Provide your answer below:<br> Content attribution
pickupchik [31]

Answer:

\boxed{ \bold{ \boxed{ \sf{(3m - 4)(9 {m}^{2}  + 12m + 16)}}}}

Step-by-step explanation:

\sf{27 {m}^{3}  - 64}

\dashrightarrow{ \sf{( {3m)}^{3}  -  {(4)}^{3} }}

Use the formula of a³ - b³ = ( a - b) ( a² + ab + b² )

\longrightarrow{ \sf{(3m - 4)(3 {m}^{2}  + 3m \times 4 +  {4}^{2} }})

\longrightarrow{ \sf{(3m - 4)( {9m}^{2}  + 12m + 16}})

Hope I helped!

Best regards! :D

5 0
3 years ago
Please I really need help with this
liubo4ka [24]
Just write them the on the other side the exact same way that they are on the Y coordinate hope this helps:)
7 0
2 years ago
Read 2 more answers
Other questions:
  • Not sure how to graph this
    8·1 answer
  • A pair of sandals is on sale for 65% off the regular price of $8.99. What is the sale price? a. $3.15 b. $4.05 c. $5.84 d. $14.8
    14·2 answers
  • Jai bought a helmet and a pair of skates.
    8·1 answer
  • A(2,4) B(4,5) Find the midpoint of the line AB, where A and B have coordinates.
    14·1 answer
  • Am i getting paid for answering questions @eurpoa2344
    9·2 answers
  • Jamie's truck has a 40-gallon gas tank.
    9·1 answer
  • Help will give brainly and thanks <br> I have 5 mins
    11·2 answers
  • Max is selling iPhone cases online. He offers two colors red and green. The red
    6·2 answers
  • SOLVE THIS PROBLEM ASAP
    8·1 answer
  • Solve for xx. Round to the nearest tenth of a degree, if necessary.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!