a certain mountain has an elevation of 19,127 feet. In 1903 the glacier on the peak covered 8 acres. By 2000 the glacier had melted to only 1 acre
(a) assume that this glacier melted at a constant rate each year. Find the yearly rate
(b) use your answer from part(a) to write a linear equation that gives the acreage A of this glacier t years past 1903.

the yearly rate of change is ? acres/years
what is the equation that gives the acreage of the glacier t years after 1903?
A=?

Question

a certain mountain has an elevation of 19,127 feet. In 1903 the glacier on the peak covered 8 acres. By 2000 the glacier had melted to only 1 acre
(a) assume that this glacier melted at a constant rate each year. Find the yearly rate
(b) use your answer from part(a) to write a linear equation that gives the acreage A of this glacier t years past 1903.

the yearly rate of change is ? acres/years
what is the equation that gives the acreage of the glacier t years after 1903?
A=?

anonymous · Answer

@zzr0ck3r

anonymous · Answer

A. determine how many years have passed. Determine how many acres have melted.

anonymous · Answer

@gypsy1274 i having trouble with this ??

anonymous · Answer

How many years have passed? What numbers are you going to subtract?

anonymous · Answer

@gypsy1274 idk

anonymous · Answer

Read the question again. What years are mentioned?

anonymous · Answer

1903 and 2000

anonymous · Answer

How many years in between 1903 and 2000?

anonymous · Answer

97

anonymous · Answer

And how many acres of ice have melted?

anonymous · Answer

1 acre

anonymous · Answer

Read again. How many acres were there in 1903?
How many acres in 2000?

anonymous · Answer

1903 8 acres 200 i acre

anonymous · Answer

2000

anonymous · Answer

So, how many acres melted?

anonymous · Answer

7

anonymous · Answer

So, how many acres per year?

anonymous · Answer

idk because 97 years past

anonymous · Answer

How can you figure out acres per year? (hint: you wrote the formula in your question.)

anonymous · Answer

im stuck idk

anonymous · Answer

the yearly rate of change is ? acres/years

anonymous · Answer

im still stuck

anonymous · Answer

@gypsy1274

anonymous · Answer

Sorry, I got bumped.
acres / years

anonymous · Answer

You already have the numbers, just do the division. I assume your teacher wants the decimal and not the fraction.

anonymous · Answer

@gypsy1274 trust and believe if i knew how 2 do this problem i would

anonymous · Answer

Sorry, I keep getting bumped off.
I'm not sure what is unclear so I'm having a hard time explaining. What grade are you in?

anonymous · Answer

You already said:
Years = 97
Acres = 7
So, $$\frac{acres}{year} = \frac{7}{97}$$

anonymous · Answer

0.072@gypsy1274

anonymous · Answer

Now you have the acres per year, so...
You need a formula that will give you the remaining acres of ice for an unknown number of years past 1903.
Your problem states that t = years past 1903.
You have the rate of melting per year.
Your problem states that you started with 8 acres in 1903.
This is very similar to the distance = rate * time formula.

anonymous · Answer

@gypsy1274 can we finish this problem

anonymous · Answer

Sure. Do you have a specific question?