Use the formula below.
Let A_0 = 1 because you just want to know the percentage left. Usually that's the initial amount.
t = 15, the number of years past. n = 22, the half-life.
Answer:
x = 61
Step-by-step explanation:
A straight line equals 180, so:
2x + 3 + x - 6 = 180
add like terms
3x - 3 = 180
add 3 to both sides
3x = 183
divide by 3
x = 61
Answer:
16m
Step-by-step explanation:
TU = DE
Answer:
On his day off, Lee took a trip to the zoo. He drove an average speed of 65 mph, and it took him two-and-a-half hours to get from his house to the zoo.
Step-by-step explanation:
Answer:
taxes and at work
Step-by-step explanation:
you deal with money at work and you have to calculate numbers doing taxes.