+0  
 
0
64
1
avatar

Arianna 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 4 square feet, then she can make 15 scarves. If the area of each scarf is 5 square feet, how many scarves can she make?

 Feb 12, 2020
 #1
avatar+109740 
+1

Let N  be the number of scarves she can make

Let  k  be the proportionality constant

Let A  be the area of a scarf   .....so we have that...

 

N  =  k / A

 

And we know that

 

15  =  k / 4            multiply both sides by 4

 

60  = k

 

So

 

N  = 60 /  5

 

12   =  number of scarves she can make when each has an area of 5 ft^2

 

 

cool cool cool

 Feb 12, 2020

75 Online Users

avatar
avatar
avatar
avatar