Question

a jewelry maker uses 4/5 yards of wire to make 3 necklaces. She uses the same length of wire for each necklace. What length of wire will she use to make 5 of the same necklaces.

Answer 1

`(4)/(3) \text \ yards\ of\ wire`

Explanation:

She uses 4/5 yards of wire to make 3 necklaces

Then

In Oder to make 1 necklace she use :

`(\left( (4)/(5) \right) )/(3) =((4)/(5) )/((3)/(1) ) =(4)/(5) * (1)/(3) = (4)/(15)\ \ \small\text yards\ of \ wire`

Now to make to make 5 of the same necklaces she needs :

`(4)/(15) * 5=(4)/(15) * (5)/(1) =(20)/(15)= (4)/(3) \ \ \ \text \ yards\ of\ wire`