First know how many pounds are in a ton
there are 2000 pounds in a ton
so simply divide
7000/2000=3.5
So there are 3.5 tons of brick on the truck
Answer:
D. 100 of the company's customers chosen from the monthly billing list
Step-by-step explanation:
Notice that 45 hours is 3 times the half-life of 15 hours.
After the first 15 hours, 450 g decays to half this amount, 225 g.
After the next 15 (total 30), 225 g decays to 112.5 g.
After the next 15 (total 45), 112.5 g decays to 56.25 g.
Answer:
70.8 kg
Step-by-step explanation:
This is a division problem.
637.2 kg / 9 = 70.8
Answer: 70.8 kg