Element X is a radioactive isotope such that every 66 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 240 grams, how much of the element would remain after 29 years, to the nearest whole number?
Answers
Answer:
177 grams
Step-by-step explanation:
Answer:
53grams... Approximated
Step-by-step explanation:
In 66 years = 240/2 = 120 grams
In 1 year = 120/66 gram
In 29 years = 120/66 × 29 = 52.73grams
Related Questions
A family wants to rent a car to go on vacation. Company a charges $70.50 and $.50 per mile. Company B charges $35.50 and nine cents per mile. How much moreDoes Company a charge for X miles then company b?
Answers
Answer:
Company A is 1.99 times B.
Step-by-step explanation:
Company A charges:
[tex]A=70.50+0.50=\$71/mile[/tex]
Company B charges:
[tex]B=35.50+0.09=\$35.59/mile[/tex]
We just need to divide A by B:
[tex]x=A/B=1.99[/tex]
Therefore, company A is 1.99 times B.
I hope it helps you!
SOMEONE SAVE ME FROM FAILING PLEASE
Answers
Answer:
Ok 19$ fortnite card. Who wants it!, and yes I am giving it away, and remember, share, share, share, and trolls, don't get blocked!
Step-by-step explanation:
Answer:
y - 3 = -2(x + 4)
Which is greater, 0.024 or 0.102? How did you get answer?
Answers
Answer:
0.102
Step-by-step explanation:
because 0.102-0.024>0, meaning it has more. also the second number has a . tenth while the first number has 2 hundreths, which is smaller
Answer:
0.102
Step-by-step explanation:
Because 0.024 and 0.102 is compared by digits first digit of THEM both is 0 and its equal second digit is 0 and 1 so 1 is greater than 0 because of the 1 on the 0.102 it is greater
a car travled 20 miles in 0.4 hours. what was the cars speed? Include units of measure.
Answers
Answer:5
Step-by-step explanation:∧
speed=distance/timedistance=20 miles
time=0.4
speed=20/0.4
Answer=5
FIND THE EQUATION OF THE LINE FROM THE FOLLOWING GRAPH. please give steps
Answers
Answer:
I can't tell
Step-by-step explanation:
I'm on an ocps school laptop and i can't see the image
Answer:
D. x+2y=12
Step-by-step explanation:
From the graph we know that the y-intercept is 6. (0,6) and the x-intercept is 12. (12,0)
The graph is going down so the slope is negative, from (0,6) count down to (0,0) and count right 12 unit to reach the x-intercept(12,0) the slope is -6/12 or -1/2.
the equation of the line is y=-1/2+6 or x+2y=12
x+2y=12
2y=-x+12
y=-1/2x+6
Which equation shows this volume formula solved for h?
Answers
Answer:
Step-by-step explanation: the answer is B i think
Answer:
A
Step-by-step explanation:
[tex]V = \frac{nd^2h}{6}[/tex]
multiply both sides by 6
[tex]6V = nd^2h[/tex]
divide both sides by [tex]nd^2[/tex]
[tex]\frac{6V}{nd^2} = h[/tex]
So the answer is A.
Plsss help me!!!Mei graphed the locations of several places in her town on the coordinate plane shown below. There is also
an ice cream shop halfway between the school and hospital.
At what coordinates should Mei graph the ice cream shop?
Answers
Answer:
(6, -4)? is this on khan academy or smth
Step-by-step explanation:
How do I slove this question? I really need to find the correct answer please do help.
And provide an educated example.
Answers
Answer:
C,D,F
Step-by-step explanation:
For the experiment of rolling an ordinary pair of dice, find the probability that the sum will be less than 4 or greater than 8.
Answers
Answer:
the probability is 3/6 or 1/2
Step-by-step explanation:
Help asap please!! I will mark brainlest and give me the work
Answers
Answer:
16 square feet
Step-by-step explanation:
Base: 2 * 2 = 4
Side: 2 * 3 / 2 = 3
4 sides = 3 * 4 = 12
Base + sides = 12 + 4 = 16
Needs answer please
Answers
Answer:
Your answer is.....
2.4 pound in each bag
Mark it as brainlist answer . follow me for more answer.
Step-by-step explanation:
Answer:
Between [tex]2\frac{1}{3} and 2\frac{3}{5}[/tex]
Step-by-step explanation:
12 ÷ 5 = 12/5 = [tex]2\frac{2}{5}[/tex]
Can you show me the steps that you took to get the answer for this question?
Answers
If measure of 1 + measure of 2 = 90
And measure of 1 = x
And measure of 2 = x - 4
You would have the equation of
X + X - 4 = 90
So then you combine like terms
2x - 4 = 90
Then you add 4 on both sides
2x - 4 = 90
+ 4 + 4
2x = 94
Then you divide by 2 to get x alone
And x = 47
Jocelyn boils 24 eggs. From experience, she knows that the shell of any given during the boiling process. If shells crack independently, what is the probability the boiling process with a cracked shell? Round to 2 decimal places.
Answers
Answer:
.62
Step-by-step explanation:
Keep it nice and simple.
Answer:
.62
Step-by-step explanation:
hlep plees
hi i need to do a test for mi 1 grad clas
what 2-2=
3-1=
and for my hom work
what is
56-210=
300x 285
please help
Answers
3 - 1= 2
56 - 210= 154 (or -154)
300 x 285=85500
Answer:
0, 2, 154, 85,500
Step-by-step explanation:
these are the anwsers to your question
when calculating present value, the _____ the interest rate, the smaller the present value amount.
•smaller
•larger
Answers
when calculating present value, the _____ interest rate, the smaller the present value amount.
* smaller
* larger,✓
The correct value is,
''When calculating present value, the smaller the interest rate, the smaller the present value amount.''
What is Simple interest?
A quick and easy method of calculating the interest charge on a loan is called a Simple interest.
Given that;
To calculating the present value, The smaller the present value.
Now,
The correct value is,
''When calculating present value, the smaller the interest rate, the smaller the present value amount.''
Learn more about the simple interest visit:
https://brainly.com/question/20690803
#SPJ2
What is the 8th term of the sequence 12, 17, 22, 27, 32,…?
A. 47
B. 42
C. 52
D. None of these choices are correct.
Answers
Answer:
A. 47
Step-by-step explanation:
Hope it helps! If you want an explanation, ask in the comments and I'll give you one!
The 6th term is 37
The 7th term is 42
The 8th term is 47
Of all the eighth graders at the Paxton School, 15 played basketball, 9 played volleyball, 10 played soccer, 1 played basketball and soccer only, 2 played volleyball and soccer only, 1 played basketball and volleyball only, and 2 played volleyball, basketball, and soccer.
How many played one or more of the three sports?
Answers
Answer:
32
Step-by-step explanation:
The Valley Middle School library just added 250 books to the shelves. Of those books, 40% are fiction. How many of the new books are fiction?
Answers
Answer:
100
20 = 50
50 x2
Step-by-step explanation:
Answer:
100
Step-by-step explanation:
250 books × 40%
= 100
other way to solve it is
250 × 0.40
= 100 fiction books
A dozen of oranges costs P288.50. About how much is the cost of 5.75 dozen?
A.$2,800
B.$1,900
C.$1,800
D.$900
Answers
Answer:
A is the correct answer, hope this helps
Please refer to the pictures below
Answers
Answer:
D
8-2
Step-by-step explanation:
System of inequalities are
x + y ≥ 7
8x + 7y ≤ 82
5. Cuando abrió sus puertas, una tienda de café ofrecía 6 tipos diferentes de
bocadillos. Desde entonces, agregó dos nuevos bocadillos cada semana.
Si la tienda ofrece ahora 28 bocadillos diferentes, ¿cuántas semanas (s) han
transcurrido desde su inauguración?
?
Answers
Answer:
11 weeks have passed.
Step-by-step explanation:
We can create a linear function that represents the number of bocadillos offered as a function of the number of weeks (s) that went by since the beginning (when the number of bocadillos was 6):
f(s) = 6 + 2 * s
Since now the number of bocadillos is 28, we can solve for s in the equation
28 = 6 + 2 * s
subtract 6 from both sides
28 - 6 = 2 * s
22 = 2 * s
divide both sides by 2
11 = s
Therefore, 11 weeks have passed.
PLEASEEEEEEEEEEEEE ANSWER THIS FASTTTTTTTTTTTTTTTT
Answers
Answer:
B 2:1
Step-by-step explanation:
Which value of x makes the two matrices inverses of each other?
5
2
1
-2
2
1
5
-2
-1
2
Answers
Answer:
A: -2
Step-by-step explanation:
TOOK THE TEST
Help ASAP plz ASAP please
Answers
Answer:
y = 6
Step-by-step explanation:
3y/2 - 1 = 8
3y/2 = 8 + 1
3y/2 = 9
3y = 9 × 2
3y = 18
y = 18/3
y = 6
Answer:
y = 6
Step-by-step explanation:
[tex]\frac{3y}{2}[/tex] -1 =8
[tex]\frac{3y}{2}[/tex] -1 + 1 =8 +1
[tex]\frac{3y}{2}[/tex] = 9
[tex]\frac{3y}{2}[/tex] × 2 = 9 × 2
3y = 18
3y/3 = 18/3
y = 6
Double check:
[tex]\frac{3(6)}{2}[/tex] - 1 = 8
[tex]\frac{18}{2}[/tex] -1 =8
9 - 1 = 8
8 = 8
A percentage is another way to write a _________________.
Answers
Answer:
Ratio, Decimal or Fraction
Step-by-step explanation:
Answer:
it's another way to write a fraction:)
the radius of a circle is 2 kilometers. What is the circles circumference. Use 3.14 for pie
Answers
Answer: 12.56
Step-by-step explanation:
PLs help me I will give brainliest please dont answer if you don’t know
Answers
Answer:
Interest earned will be $1,118.00
Step-by-step explanation:
Interest = Principal x Rate x Time
I = 6500 x .043 x 4
Find the value of x.
m2 = x + 85
2
73°
Answers
Answer:
-12
Step-by-step explanation:
in an iscocles, the base angles equal eachother so,
73=x+85
x=-12
six times the sum of a number and 8 equals 2
Answers
Answer:
24
Step-by-step explanation:
6*8x:2
48x:2
x:48/2
x:24
**100 points**
Which of the following is being constructed in the image?
A. a line parallel to a given line through a point, not on the line
B. a line perpendicular to a given line through a point not on the line
C. a line segment that is congruent to a given segment
D. a perpendicular bisector of a line segment
Answers
Alright, sorry for possibly wasting the answer, but its either D or B. i think its D, because its a bisector of the line segment, but B reads that it IS perpendicular, but on points not the line. You can rule out which one of the two it is, i would suggest asking a teacher for help or waiting for a better and more reliable answer.
Sorry if this doesn't help, if it does could I have Brainliest? Bless you, have a nice day.
Answer:
D
Step-by-step explanation: