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sweet-ann [11.9K]
2 years ago
14

A store had 150 laptops in the month of January. Every month, 20% of the laptops were sold and 10 new laptops were stocked in th

e store. Which recursive function best represents the number of laptops in the store f(n) after n months?
f(n) = 150 − 0.8 × f(n − 1) + 10, f(0) = 150, n > 0
f(n) = 0.2 × f(n − 1) + 10, f(0) = 150, n > 0
f(n) = 0.8 × f(n − 1) + 10, f(0) = 150, n > 0
f(n) = 150 + 0.8 × f(n − 1) + 10, f(0) = 150, n > 0
Mathematics
2 answers:
Nady [450]2 years ago
8 0
N. f(n)
0 150
1 .8 (150)+10
2. ......

The answer is c

hoping this helps
anygoal [31]2 years ago
3 0

Answer:

Option C is the correct answer.

Step-by-step explanation:

Let us find the amount of laptops available.

         n = 0, Laptops = 150

         n = 1 , Laptops = 150 - 0.2 x 150 + 10 = 0.8 x 150 + 10 = 130

         n = 2, Laptops = 130 - 0.2 x 130 + 10 = 0.8 x 130 + 10 = 114

So we have f(0) = 150.

                    f(1) = 0.8f(0)+10

                    f(2) = 0.8f(1)+10

Similarly       f(n) = 0.8f(n-1)+10

Option C is the correct answer.

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Luda [366]

We need to graph the given piecewise function.

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So we will find few points by plugging random numbers between -5 and 3.

Let's use x=-5, we get:

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Now we join those points by a curved line.

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------------

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erik [133]

Answer:

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Step-by-step explanation:

Let

x denote number of boys

and

y denote number of girls

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x+y = 45      => Eqn 1

And total paid amount was 175

So,

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For solving, We will use the substitution method

So, from eqn 1

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