Answer:
A = 0.75 gram or 1 gram
Step-by-step explanation:
The half-life of carbon 14 is years. How much would be left of an original -gram sample after 2,292 years? (To the nearest whole number).
We can use the following formula for half-life of 
to find out how much is left from the original sample after 2,292 years:
where:
<em>A</em> is the amount left of an original gram sample after <em>t</em> years, and
is the amount present at time <em>t</em> = 0.
The half-life of is the time <em>t</em> at which the amount present is one-half the amount at time <em>t </em>= 0.
If 1 gram of is present in a sample,
Solve for A when t = 2,292:
Substituting = 1 gram into the decay equation, and we have:
A = 0.75 g or 1 g
Answer:
Let 'x' represent the money Alan needs to work to earn $120 (enough money for skateboard).
7.50x = 120
.......
........
x = 16 hr
Alan needs to work 16 hours to earn enough money for the skateboard.
Step-by-step explanation:
Answer:
180
Step-by-step explanation:
take 72+72 +36 to get your answer .
No se la respuesta lo siento
Hoi!
To solve this, first plug in the values for x and y.
Turns into...
Now that we've got the values plugged in, let's solve.
4 × 2 = 8
× 3 =
is your answer. :)
