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
Naddika [18.5K]
3 years ago
7

The half-life of chromium-51 is 28 days. If the sample contained 5.10 grams, how much chromium was present 168 days ago?

Mathematics
1 answer:
stepan [7]3 years ago
3 0
I don’t understand how many grams had the first one,so I can’t help you
You might be interested in
The equation y = 35.25x + 40 gives the labor cost y of repairing a car if it takes x hours to repair the car. Which statement is
Ad libitum [116K]
Repari cost (x) = y = 35.25 x + 40

x = number of hours to repair the car.

Every hour the cost will increase 35.25, becasue 40 is a fixed cost.

if x = 1, repair cost(1)  = 35.25 + 40

if x = 2, repair cost (2) = 35.25*2 + 40

if you subtract repair cost (1) from repair cost (2) you get 35.25*2 - 35.25 = 35.25

The same thing every time the repair time increases one hour. 

Answer: the last option of the list, for every hour of labor, the cost increases by $35.25
5 0
3 years ago
Which circle will have the largest circumference?
Dmitriy789 [7]
7383829bshsbnebsbbwben
4 0
3 years ago
Rosc has $500 in her savings account. She carnis simple interest at 5%
Firlakuza [10]

Answer:

50

Step-by-step explanation:

I assume you are asking how much she EARNS after 2 years.

500x.-5=25 interest per year

25 x 2 years = 50 interest for 2 years.

5 0
3 years ago
PLEASE HELP THANKS!!
mafiozo [28]

Answer: a) x = 5   b) x = 12

Step-by-step explanation: For each one you just do the inverse to get it on the other side of the equal sign. For example x + 3 = 8 would be like this :

1. x + 3 = 8

2. x + 3 - 3 = 8 -3

    ( + 3 - 3 cancels out)

3. x = 5

       

6 0
3 years ago
Read 2 more answers
What is the value of the 8 in 84,052.27
Anuta_ua [19.1K]

8 appears in the 10 thousand's place and is of 80,000 in value.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify. 5(22 - 9 · 2) - 2( 3 · 2 4) 7 <br> a.-99 <br> b.-83 <br> c.-75 <br> d.-71
    9·1 answer
  • QUICK HELP ME !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    12·2 answers
  • How do you factor 5 out of 5x+40
    10·2 answers
  • Rewrite the following polynomial in standard form.<br> 1<br> -9 + - X<br> -X – 7x4 + x2 – 25<br> 8
    5·1 answer
  • Which of the following functions is graphed below?
    11·1 answer
  • Which is taller, the Burj Khalifa or a stack of the money it cost to build the Burj Khalifa
    7·2 answers
  • (Drop downs:) 8,6,5.5<br> (Drop downs 2:) 10.5,8,5.5 <br> (Drop downs 3:) 33,22,11
    10·1 answer
  • Could you help please i dont get it
    13·1 answer
  • Graph y &gt; x2 - 3. Click on the graph until the correct graph appears.
    14·1 answer
  • y = 2x squared + 5x -3 can be written in the form y= 2( x+a) squared + b . Find the value of a and the value of b.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!