1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ss7ja [257]
2 years ago
6

Bismuth-210 has a half-life of 5 days. Find

Mathematics
1 answer:
taurus [48]2 years ago
5 0

Answer:

0.78125g

Step-by-step explanation:

Since there are 35 days in 5 weeks, 7 half-lives of Bismuth-210 will take place. To solve for that, you can divide 100g by 2, 7 times or simply: \frac{100}{2^{7}}

\frac{100}{2} =50\\\frac{50}{2} =25\\\frac{25}{2} =12.5\\\frac{12.5}{2} =6.25\\\frac{6.25}{2} =3.125\\\frac{3.125}{2} =1.5625\\\frac{1.5625}{2} =0.78125

You might be interested in
Find the midpoint of segment EF if E (5,-2) F(1,-8) URGENT
Elina [12.6K]

Answer

(3, -5)

Step-by-step explanation:

hope it helps :)

4 0
3 years ago
What is the next letter b a d e h g k
aivan3 [116]
Abcdefghijklmnopqrstuvwxyz

ok

b to a
goes back 1 letter

then b to d
skips 3 letters forward

then d to e
1 forward

e to h
skips 3 forward

h to g
goes 1 back

g to k
goes 3 forward

pattern seems to be
1back, 3 forward, 1 forward, 3 forward, repeat
so we are at 3 forward after than 1 back, so the next one is 1 forward

1 forward from k is l

the next letter is L
8 0
3 years ago
Tony's fish tank is a right rectangular prism 50 \,\text{cm}50cm50, space, c, m long by 25\, \text{cm}25cm25, space, c, m wide.
Svetlanka [38]
The volume of the prism is calculated by multiplying the length, L, width,W, and depth or height, H. 
                                 V = L x W x H
Fish tank:
                                V = 50 cm x 25 cm x 25 cm 
                                     = 31250 cm³
Depth of the water in tank (with castle - without castle)
                                   d = 57.5 cm - 48 cm = 9.5 cm
Volume of the caste: 
                                V = 9.5 cm x 50 cm x 25 cm = 11875 cm³
6 0
3 years ago
How to simplify 7m-2m
vichka [17]
You would have no problem at all if it said "7 cows minus 2 cows", or "7 books minus 2 books". The THINGS just happen to be m's instead of cows or books.
3 0
3 years ago
Read 2 more answers
What is 2 to the power of 2 multiply 5​
solniwko [45]
Answer: 20

1) simplify 2^2 to 4

4*5

2) simplify

20
8 0
3 years ago
Other questions:
  • im going out on a limb here and asking if the answer is 310.72??? can someone find the surface area of this rectangular pyramid
    13·1 answer
  • The area of a rectangle is 48 cm² and the length of the rectangle is 8 cm longer than the width. The area of a rectangle is foun
    10·2 answers
  • What percentage of Anchor Global Insurance Full Time employees are employed in the US?
    5·1 answer
  • Write the equation of the line that passes through (4, 2) and is parallel to the line y = 2x – 1.
    8·1 answer
  • 50% of Brady's Halloween candy has been eaten. He has 68 pieces left. How much did he have​
    7·2 answers
  • A classroom had 16 computers. If the ratio of computers to ipads was 4 : 5, how many ipads does the classroom have?
    6·1 answer
  • Find the perimeter and area of the figure.<br> 5 m<br> 3 m<br> 4 m
    15·2 answers
  • Write an equation for a line perpendicular to y = -5x – 4 and passing through the point (15,5)
    6·1 answer
  • Which binomial is a factor of 100x2 – 49?
    5·1 answer
  • Given points A(−2,0), B(−5,3), C(−9,−1), P(7,6), Q(4,0), and R(−4,4), which of the following proves that △ABC~△PQR?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!