Answer:
84 Necklaces
Step-by-step explanation:
1/2 Hour = 6 Necklaces - (We want to convert this from 1/2 or 30 min to 1 hour)
1/2 x 2 = 1 Hour / 6 x 2 = 12 Necklaces
1 Hour : 12 Necklaces <- This is our ratio
With this ratio, we can now multiply the hour by the number of hours we have in this case 7.
1 x 7 = 7 Hours / 12 x 7 = 84 Necklaces < - We need to multiply the same number to both sides to keep the equivalent ratio.
7 : 84
Answer: 84
