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2 years ago

How can exponential functions be used to predict future prices of commodities such as gasoline?

Mathematics

1 answer:

VikaD [51]2 years ago

7 0

The price of gasoline could increase exponentially as modelled by the function P = Poe^rt.

<h3>What is an exponential function?</h3>

An exponential function is a function that increases or decreases in an exponential manner.

We could write the function that models the future price of gasoline as P = Poe^rt

Where;

Po = present price of gasoline

P = Price of gasoline at time t

r = rate of increase in the price of gasoline

t = time interval

Learn more about exponential function:brainly.com/question/11487261

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A blender that normally costs $ 130 is on sale for 12 % off. What is the final cost of the blender if there is also an 8 % sales

ludmilkaskok [199]

Answer:

The final price of blender after sale off and sales tax = $123.552 A

Step-by-step explanation:

Given as :

The costs of blender = $130

The sale off percentage = 12%

The sales tax applied on blender price = 8%

Now

The cost of blender after sale off = $130 - 12% of $130

The cost of blender after sale off = $130( $\frac{100 - 12}{100}$ )

I.e The cost of blender after sale off = $130 × $\frac{82}{100}$ = $114.4

Again, sales tax of 8% is applied after sale off

So, Final price of blender = $114.4 + 8% of $114.4

Final price of blender = $114.4 ( $\frac{108}{100}$ )

I.e Final price of blender = $123.552

Hence the final price of blender after sale off and sales tax = $123.552 Answer

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