Answer:
720
Step-by-step explanation:
50/8=6.25
4,500/6.25=720
Answer:
x = 19.5
Step-by-step explanation:
-2x + 7 = -32 (subtract 7 on both sides)
-7 -7
-2x = -39 (Divide by -2)
x = 19.5
Answer:
0.274g/cm^3
Step-by-step explanation:
density = mass / volume
so d = 575.4 / 210
d = 0.274g/cm^3
t=100
p=3000
t 1/2 = 20
Try inserting the numbers in the half-life formula.