This is a mixture problem.
mass1 * karat1 + mass2*karat = total mass * total carat
Total mass = 200g.
Total karat = 14.
Let the 9 karat gold to be mixed be x. The 18 karat would weight (200 - x). Since the total = 200g.
9*x + 18*(200 -x) = 14*200
9x + 18*200 - 18*x = 14*200
18*200 + 9x - 18x = 14*200
3600 - 9x = 2800
3600 - 2800 = 9x
800 = 9x
9x = 800
x = 800/9
x ≈ 88.89
Therefore 88.89 grams of 9 karat gold must be mixed.
Each child should get 8/3= 2.6 slices
2.6 slices.
Believe it is III. = 100 tosses according to wikipedia a coin flip should about have a chance of 50/50.1.
Answer:
h is directly proportional to B and inversely proportional to A
Step-by-step explanation:
Answer:
I believe the answer is -4/3
Step-by-step explanation: