anonymous
  • anonymous
Plzzz help me....... I'll be ur fan.....anyone!!!!!!!!!!!!!!! Two ocean beaches are being affected by erosion. The table shows the width, in feet, of each beach at high tide measured where 1995 is represented by year 0. Year Western Beach Dunes Beach number width (in feet) width (in feet) 0 100 20 5 90 45 10 80 70 11 78 75 12 76 80 15 70 95 Describe the patterns shown by the erosion data measurements shown for each of the beaches in the table. a. Between which years will the beaches have approximately the same width? b. Assuming these rates remain constant, what can you do to get a better c. approximation of when the two beaches will have the same width?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@Vocaloid @princeharryyy
Mertsj
  • Mertsj
The western beach is getting wider. The dunes beach is getting narrower. Between years 11 and 12 the beaches will have about the same width. To get a more accurate answer, write the equations that express beach width as a function of the number of years for each beach. Solve the system of equations.
anonymous
  • anonymous
so how do u do the last part.........?? @Mertsj

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anonymous
  • anonymous
Have you made the equations already ?
anonymous
  • anonymous
no....
anonymous
  • anonymous
You need to create the equations first to get a better approximation of when they will be the same
anonymous
  • anonymous
Do you know how to create equations?
anonymous
  • anonymous
ya...wait...
anonymous
  • anonymous
western - y = -2x +100 dunes - y = 5x+20
anonymous
  • anonymous
\[-2x +100 = 5x +20\] \[-2x+80=5x\] \[80=7x\] \[\frac{ 80 }{ 7 }=\frac{ 7x }{ 7 }\] \[11\frac{ 3 }{ 7 }\]
anonymous
  • anonymous
Yes that is correct. In 11 3/7 months the two dunes will be equal
anonymous
  • anonymous
ok thanks..........................

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