## S=C(1+R/100)^5

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
mcpeakmelissa
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Joined: Sun Sep 12, 2010 4:57 am
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### S=C(1+R/100)^5

If the inflation rate in Italy is 1.80%, the item is expresso at 2.35 euros what would it be in 5 years?
The equation: S=C(1+R/100)^5

So it is: S=2.35(1+1.8/100)^5

Not sure how to calculate? Need to show my work so if you could help that would be wonderful.

Melissa

mcpeakmelissa
Posts: 9
Joined: Sun Sep 12, 2010 4:57 am
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### Re: S=C(1+R/100)^5

I get to this part:

S=2.35(1+1.8/100)^5
S=2.35( ? )

stapel_eliz
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I get to this part:

S=2.35(1+1.8/100)^5
S=2.35( ? )
Now do the indicated calculations. A calculator will be useful.

mcpeakmelissa
Posts: 9
Joined: Sun Sep 12, 2010 4:57 am
Contact:

### Re: S=2.35(1+1.8/100)^5

I get to this part:

S=2.35(1+1.8/100)^5
S=2.35( ? )
Now do the indicated calculations. A calculator will be useful.
So I do what is in the parenthesis first which comes out to .0286 now mutiply this by 5 and the answer is 0.14. Is this correct?

Melissa

mcpeakmelissa
Posts: 9
Joined: Sun Sep 12, 2010 4:57 am
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### Re: S=2.35(1+1.8/100)^5

So I recalculated with calculator and came up with 355.0488005, but we move 3 decimal points and get the increase after five years as .355 or rounded .36.
Is this correct?

Melissa

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
Contact:
So I do what is in the parenthesis first which comes out to .0286
How did you get that 1 + 0.018 equalled 0.0286?
now mutiply this by 5
I see a power of 5, but not a multiplier. Where is your 5 coming from?