Answer:
Step-by-step explanation:
7+4y=7-5y+54
Collecting like terms
4y + 5y = 7 - 7 + 54
9y = 54
y = 54/9
y = 6
1 gram = 1000 milligrams
a) You can pick any 3 <u>gram</u> numbers that add to 15.4 grams
For example, 5 , 3, 7.4 = 15.4 grams
a) You pick any 3 <u>milligram</u> numbers that add to 15.4 grams (or 154,000 milligrams)
For example, 50,000, 70,000, 34,000 = 154,000 milligrams
Answer:

Step-by-step explanation:

Hope this helps!
Answer:
43:51 or 43:1 ... you have to find that out for your self