C I think................
Answer:
10.2 years
Step-by-step explanation:
it decays 4.9% per year.
figure out how many years it takes to decay 50% (half-life)
50/4.9 = 10.2
Answer: 5/6>7/8
Hope that helps
Answer:
i think it is A because that seems like the one making the most sense
Step-by-step explanation:
Given:
13 pounds and 7 ounces
convert to kilograms:
1 kilogram = 2.20462 pounds
1 kilogram = 35.274 ounces
13 pounds * 1 kg/2.20462 pounds = 13 kg/2.20462 = 5.8967 kg
7 ounces * 1kg/35.274 ounces = 7 kg/35.274 = 0.1984
5.8967 kg + 0.1984 = 6.0951 kg. rounded up to 6.10 kgs.