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erma4kov [3.2K]
3 years ago
8

Ariana has a large piece of fabric that she wants to use to make some scarves. The number N of scarves she can make is inversely

proportional to the area A of each scarf. If the area of each scarf is 3 square feet, then she can make 15 scarves. If the area of each scarf is 5 square feet, how many scarves can she make? Arianna can make _____ scarves.
Mathematics
1 answer:
AveGali [126]3 years ago
8 0

Answer:

9 scarves.

Step-by-step explanation:

We have been given that the number N of scarves Ariana can make is inversely proportional to the area A of each scarf.

We know that equation of two inversely proportional quantities in in form y=\frac{k}{x}, where, k is constant of variation and y is inversely proportional to x.

Let us find constant of variation using our given information.

N=\frac{k}{A}

15=\frac{k}{3}

15*3=\frac{k}{3}*3

45=k

Now, we will substitute A=5\text{ and }k=45 in our equation to solve for N.

N=\frac{45}{5}

N=9

Therefore, Ariana can make 9 scarves.

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