Question

Kerion has a beaded necklace business. She can make 12 necklaces is 2 hours. How long will it take her to make 9 necklaces?

Answer 1

Answer: An hour and a half.

Explanation:

1. We know that it takes 2 hours to make 12 necklaces so in order to get how many necklaces she can make in an hour we must divide.

2. 12/2=6. It takes Kerion one hour to make 6 beaded necklaces.

3. Now, half of 6 is 3. So, we add 6+3 to get your nine necklaces.

4. Since we know one hour makes 6 necklaces, to make 3 necklaces would take half an hour.

5. Add the hour and a half, and you get 90 minutes.

Hopes this helps :)

Answer 2

1.5 hours

Explanation:

Set up the proportion.

Put necklaces on one side

12 necklaces

===========

9 necklaces

Put hours on the other

2 hours

======

x

The 9 goes on top because it is connected with the 12 necklaces. Put together, the 2 ratios are

`(12)/(9) = (2)/(x)`

Cross multiply

12x = 9*2 Combine the right

12x = 18 Divide by 12

12x/12 = 18/12 Do the division

x = 1.5 hours