If the half life is 20 minutes, then in 40 minutes there is 2 half lives. At the end of Each half life, you will have 1/2 of the sample remaining. So...
After 20 min you have
960/2 = 480
After 40 minutes you will have
480/2 = 240 grams
Answer:
x-intercept(s):
(
−
8
3
,
0
)
y-intercept(s):
(
0
,
−
4
)
Step-by-step explanation:
Answer:
1. Adjust the compass opening to the width of RS
2. Draw point P anywhere
3. Place the compass point on point P and draw an arc.
4. Label any point on the arc as point Q
5. Use a straightedge to connect points P and Q
Step-by-step explanation:
I did the test. This was the right answer.
Is the 6% already added or am I supposed to add the tax
Answer:
B
Step-by-step explanation:
Lets start solving until we get stuck,
6|x|+25=15
Subtract 25 from both sides
6|x|+25-25=15-25
Subtract
6|x|=-10
Divide both sides by 6
6|x|/6=-10/6
Divide
|x|=-10/6
We get stuck here, we need x to be negative but we cant have a negative x since we have absolute value. This means the answer is b.