he spent 27 now he has none, so if you add back how much he spent to what he has then you have what he had, which is 27
Answer:
perimeter=32t units
Step-by-step explanation:
let:
a=8t-2
b=8t+2
<u>perimeter=2(a+b)</u>
<u>Subtitute values of a and b:</u>
=2(8t-2+8t+2)
=2(16t)
=<u>32t units</u>
1...2...5...10 are the factors of 20 that go into 50.
Answer:
C.4.18g
The amount will remain after 12 days is 4.18 g
Step-by-step explanation:
we can use formula

where
h is half life time
t is time in days
Po is initial quantity
P(t) is the quantity after t days
we are given
Curium-243 has a half-life of 28.5 days

In a sample of 5.6 grams of curium-243
so,

now, we can plug values

now, we can plug t=12


So,
The amount will remain after 12 days is 4.18 g