Answer:
60 hours
Step-by-step explanation:
We are given;
Initial amount: A_o = 64 mg
Half life; T_½ = 15 hours
Amount left: A = 4 mg
To get the time that 4 mg of Sodium-24 remain, we will use the formula;
A = A_o(½^(t/T_½))
Where t is the time that 4 mg of Sodium-24 remain.
Thus;
4 = 64 × ½^(t/15)
Divide both sides by 64 to get;
4/64 = 2^(t/15)
0.0625 = ½^(t/15)
In 0.0625 = (t/15) In 0.5
-2.7726 = (t/15) × -0.6931
t = (-2.7726 × 15)/-0.6931
t = 60 hours
A 5 pound Cartoon Clementine oranges is priced at $4.30 what is the price per pound of Clementine oranges
Answer:
The answer to your question is 0.86.
Step-by-step explanation:
The first humor bookshelf in the section of a library can hold 2296, books. The bookshelf has 7 shelves. Shelves. Each shelf can hold the same number of books. How many books can each shelf hold? Write an equation to help solve this problem.
Answer:
328 books
An equation to solve the problem:
7x = 2296
Step-by-step explanation:
The first humor bookshelf in the section of a library can hold 2296, books. The bookshelf has 7 shelves. Shelves. Each shelf can hold the same number of books. How many books can each shelf hold? Write an equation to help solve this problem.
They said each shelf can hold the same number of books
And we have 7 shelves
Total number of books = 2296
Hence:
The number of books each shelf can hold = 2296 books/7 Shelves
= 328 books
Hence, each shelf can hold 328 books
An equation to solve this problem =
Number of books can be represented by x
Hence:
7x = 2296
Please guys help me❤❤
Answer:
the greatest number he can invite is 72 ppl because he only has 72 cupcakaes meaning he can invite more ppl than cupcakes
Step-by-step explanation:
hope this helps <3
write the constant of proportionality (k). Write an equation (y=kx)
Answer: hmmmm
Step-by-step explanation:
Does 6(3-5w)=5(4-2w)-20w have one solution, no solution, or infinitely many solutions?
Answer:
infinite
Step-by-step explanation:
trust me I would know im a smart man in college
Two or more expressions with an Equal sign is called as Equation.6(3-5w)=5(4-2w)-20w have no solution
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is 6 times of three minus five w equal to five times of four minus two w minus twenty w.
6(3-5w)=5(4-2w)-20w
Apply distributive law on LHS side
6(3)-6(5w)=5(4)-5(2w)-20w
18-30w=20-10w-20w
Let us take all the variable w terms to one side
18-20=30w-10w-20w
-2=0
Hence based on the given equation , it has no solution.
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this was a crossword puzzle given to me but i dont know how to solve crossword puzzles... help
Answer:
Across Down
1. y = 30 1. y = 35
2. x = 25 3. x = 4
5. y =9 4. x = 10
6. x = 12 7. x = 24
8. x = 11 9. x = 140
10. x = 25 11. x = 17
12. y = 8 13. x = 28
Step-by-step explanation:
You solve for the given variable then fill the box with the answer (assuming only numbers, each number gets a box. You don't put any numbers on the red boxes, only white)
please help quickly ! giving brainliest !
Answer:
x < -7 or x > 2
Step-by-step explanation:
The solution includes the interval from negative infinity to -7, not including -7. That means
x < -7
The solution also includes the intervals from 2 to infinity, not including 2. That means
x > 2
Answer: x < -7 or x > 2
100 Points and brainliest to the correct answer, need it within 6 minutes. Thank you.
f (x) = 3x ^2 - 7x + 5
f (4) = 4f
f (-6) = -6f
f (5r) = 5fr
f (y - 2) = fy - 2f
I hoped I helped, I tried my best. Please mark as brainliest and tell me whether i am wrong or right!
Thank you!
Miguel saved $355 in 5 weeks. He saved equal amounts of money each week. How much money would he save in 15.5 weeks ?
A 1,100.50
B 5,502.50
C 1,775.00
Answer:
A
Step-by-step explanation:
$355:5
$355 divided by 5=$71
5 divided by 5=1
$71 per week
$71x15.5=$1,100.50
$1,100.50 in 15.5 weeks
Please answer this question.
Answer:
C) 78
Step-by-step explanation:
its technically 77.5714... but rounds to 78, hope that helps
Answer:
It is 78 because when placed in numerical order it is in the middle
PLEASE HELP THANK YOU
Answer:
g(-4)=1
Step-by-step explanation:
The equation is g(x), if we plug in the x-value of -4, what is g (which is y)?
Looking at the graph, at x=-4, y=1
Hope this helps!
I will give you brainlest plzzz helppp!!!!
Answer:
The marked angle GEF is 25
Step-by-step explanation:
Here, we want to calculate the value of the marked angle
Mathematically, a diagram should do justice to this
Please check the attachment for the diagram
The theorem we want to use is that the sum of opposite interior angles equals the exterior angle
Thus, mathematically;
2x + 1 + x + 19 = 6x + 2
3x + 20 = 6x + 2
6x-3x = 20-2
3x = 18
x = 18/3
x = 6
The angle marked GEF is x + 19
That will be 6 + 19 = 25
vector u = <2,5> . Describe how you would use a graphical method to add vector u to vector v (shown in the graph). Then, write the resultant vector in the component form.
Answer:
Step-by-step explanation:
Draw vector u in standard position. To add u to v, shift u three units to the right and one unit up so its initial point coincides with the terminal point of v. Use a dotted line to depict the shifted vector u. Finally, draw the resulting vector with its initial point at the origin and endpoint at v + u. The component form of this resulting vector is <5, -4>.
please help!! due in 5 mins
i need help, can anyone help?
Answer:
(1) ∆DBE =~ ∆CEA by SAS Theorem
(2) ∆ABD =~ ∆ACD by SSS Theorem
Step-by-step explanation:
Hope you got it.
I’m confused on how to answer this question
Answer:
i can do A for u
Step-by-step explanation:
the seed is one variable and the place where it was planted is another
what is the area of 20 and 15
Which of the following best approximates the line of best fit?
Step-by-step explanation:
Line C does not follow the trend of points. Lines A and B have an excess number of points above their lines. Only Line D has a relative equal number of points above and below the line.
The answer is D.
The solution is, The graph that best approximates the line of best fit is option D.
Here, we have,
we know that,
Line of Best Fit:
This refers to the line that is used in a scatter plot to show and indicate a relationship between the points so that the number of points above the line is equal to the points below the point.
Line C does not follow the trend of points. Lines A and B have an excess number of points above their lines. Only Line D has a relative equal number of points above and below the line.
Hence, from the given illustration of graphs, we can see that using the eyeball method, we can see that the number of points in option D is best balanced between the line above and below.
The answer is D.
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PLEASE HELP!!! Trying to figure out what sides D and F are. Need help ASAP, THIS HAS TO BE IN MY MIDNIGHT ON FRIDAY!!! This makes or breaks me passing Geometry.
Thank You!!!
how many fourths are in 7/4
The number fourths in the given fraction is 7.
The given fraction is 7/4.
What is the fraction?In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.
The number fourths (1/4) in 7/4 are 7
Which is 7×(1/4)
Therefore, the number fourths in the given fraction is 7.
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Please help me I need to do this very fast
Answer:
B. 7
Step-by-step explanation:
for this, we can use the process of elimination.
A. 4(6) > 24
24 > 24
B. 4(7) > 24
28 > 24
C. 4(4) > 24
16 > 24
D. 4(2) > 24
8 > 24
the answer is B because it is the only choice that is greater than 24.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
please solve thisss
Any Triangles angels add up to 180
Have a nice Day , I would appreciate it if you could mark my answer brainliest
Both please I need this now
Answer:
c d
Step-by-step explanation:
whats the answer giving brainliest:)
Answer:
D) 24
Step-by-step explanation:
Hope this helps. Pls give brainliest.
ILL GIVE BRAINIEST IF YOU ANsWER MY QUESTIONS GOES TO THE FIRST PERSON!
Answer:
y = 3x + 9
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c
Given
- 6x + 2y = 18 ( add 6x to both sides )
2y = 6x + 18 ( divide all terms by 2 )
y = 3x + 9 ← in slope- intercept form
Klara picks a number. She rounds to the nearest hundred. She rounds tot the nearest thousand. She rounds the number to the nearest ten thousand. All three times, the result is the same. Which choice could be klara's number?
Answer with step-by-step explanation:
The question does not seem complete, but I'll try to make some explanations.
When you want to round a number, there are some rules.
1. If the number you are rounding is followed by 5, 6, 7, 8, 9, then round the number up, that is add 1 to it.
2. If the number you are rounding is followed by 0, 1, 2, 3, 4, then round the number down, that is add 0.
Now if given a number and you are asked to round to the nearest 100, 1 000, 10 000 and so on, then for nearest 100, count 2 numbers from the back. Whatever number you stop at, that is the number you are to round. For 1000 count 3, for 10 000 count 4 and so on.
Since Kiara is having the same value after rounding, it means she picked a number that has zeros after the 10 000th value
Let's assume she picked: 70 000
Rounding that number to nearest 100, 1000 and 10000 gives the same number which is
70 000.
This equation has one solution.
5(0-1) + 3y = 7(x + 1)
What is the solution?
Answer:
7x - 3y = -12
Step-by-step explanation:
5(0-1) + 3y = 7(x + 1)
using BODMAS to solve
5(-1) + 3y = 7(x + 1)
-5 + 3y = 7x + 7
7x - 3y = -5 - 7
7x - 3y = -12
1. 3, 12, 48,_,_,_
Find the missing terms in each geometric sequence
¿Una ecuación algebraica de5 grado puede Tener todas sus raices complejas y no reales?
Answer:
solution
Step-by-step explanation:
the sentence of the rectangle are 3cm and 4cm what is the length of the diagonal
Diana went on a trip over spring break. She traveled 489.6 miles and
used 17 gallons of gas. At what unit rate did Diana use gasoline?
Answer: is 28.8 miles per gallon
Step-by-step explanation: