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

Question

ArbitrLikvidat [17]

3 years ago

7

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:

In-s [12.5K] · Answer 1 · 2022-06-24T19:02:35+03:00

In-s [12.5K]3 years ago

8 0

Answer:

y=-1/20x+5

Step-by-step explanation:

Andrews [41] · Answer 2 · 2022-06-24T16:34:09+03:00

Andrews [41]3 years ago

3 0

The situation will be represented by linear equation, this is given by:
y=ax+b
where:
a=slope=rate
b=y-intercept
from our situation:

a=-1/20
b=5 ft
thus the equation modeling the situation will be:
y=-1/20x+5

Answer: y=-1/20x+5