Answer:
There are 2,000 grams left after 300 years.
Step-by-step explanation:
Giving the following information:
The half-life of a radioactive substance is 200 years. There are 8000 grams of the substance initially.
First, we need to calculate the reduction of the substance each year:
Yearly reduction= 8,000/400= 20 grams per year
Now, for 300 years:
300 year reduction= 20*300= 6,000
There are 2,000 grams left after 300 years.
Which expression has both eight and N factors
Answer:
8n
Step-by-step explanation:
8n is the factor of both 8 and n. in the following question. Factor ⇒ If a number, that use to divide another number and we get zero as a remainder, the number is called the factor of another number.
a) The sixth term of an AP is twice the 3rd term and the first term is 3. Find the common
difference and the 10th term
Answer:
Step-by-step explanation:
The nth term of an AP is expressed as;
Tn = a+(n-1)d
a is the first term
n is the number of terms
d is the common difference
Sixth term
T6 = a+(6-1)d
T6 = a+5d
Third term;
T3 = a+(3-1)d
T3 = a+2d
If the sixth term of an AP is twice the 3rd term, then
a+5d = 2(a+2d)
a+5d = 2a+4d
Given a = 3
3+5d = 2(3)+4d
5d-4d = 6-3
d = 3
Common difference is 3
For the 10th term
T10 = a+9d
T10 = 3+9(3)
T10 = 3+27
T10 = 30
Hence the tenth term is 30
Which ordered pair is a solution to the system of linear equations?
Can you please help me? I will mark biggest brain if correct. Thank you.
Answer:
can u give me ur Intro..........
use distributive property to find 6×296
Answer:
296 x 6 = 1776
Step-by-step explanation:
You have $350,000 to invest. Which investment would yield the greater return in three years; an investment that pays 2.5% compounded monthly or an investment that pays 2.45% compounded daily?
Answer:
Its better to invest at 2.45% interest rate compounded daily.Step-by-step explanation:
We are given
Principal Amount = $350,000
Time t = 3 years
We need to determine which investment will yield greater return
a) 2.5% compounded monthly
b) 2.45% compounded daily
The formula used will be: [tex]A=P(1+\frac{r}{n})^{nt}[/tex]
a) 2.5% compounded monthly
We have P=$350,000 t= 3 years, r = 2.5 or 0.025 and n= 12
Putting values and finding A
[tex]A=P(1+\frac{r}{n})^{nt}\\A=350000(1+\frac{0.025}{12})^{12*3}\\A=350000(1.0021)^{36}\\A=350000(1.079)\\A=377650[/tex]
So, the return of investment in 3 years would be $377650 if interest rate is 2.5% compounded monthly.
a) 2.45% compounded daily
We have P=$350,000 t= 3 years, r = 2.5 or 0.025 and n= 365
Putting values and finding A
[tex]A=P(1+\frac{r}{n})^{nt}\\A=350000(1+\frac{0.0245}{365})^{365*3}\\A=350000(1.000067)^{1095}\\A=350000(2.0821)\\A=728735[/tex]
So, the return of investment in 3 years would be $728735 if interest rate is 2.45% compounded daily.
So, if we invest 2.45% interest rate that is compounded daily we will make $728735 while if we invest 2.5% interest rate that is compounded monthly we will make $377650
So, its better to invest at 2.45% interest rate compounded daily.
What is the slope of the line?
Answer:
24'
Step-by-step explanation:
the slop aims for the angle in which the 78 can go in: hope this helps!!
In a race, 47 out of the 50 swimmers finished in less than 35 minutes. What percentage of the swimmers finished the race less than 35 minutes?
47*_____=_______
50*_____=_______=______%
Answer:
94%
47*2=94
50*2=100
Step-by-step explanation:
Answer: 94% of the swimmers finished the race in less than 35 minutes.
Step-by-step explanation:
There are several ways to go about finding the answer. The best way to solve this, which can be easily applied to other percentage problems is dividing the number of swimmers who finished in this time (47) by the total number of swimmers (50) (Using a calculator).
47/50 = 0.94
To change a decimal to a fraction, move the decimal place over two spaces to the right. Therefore, 0.94 becomes 94%.
Way 2:
This only works because there the number of swimmers are a multiple of 100.
50 is 1/2 of 100. To get the full 100, you can multiply both the numerator and denominator by 2.
Multiply 47 by 2 to get 94 and 50 by 2 to get 100. Thus, 94/100 swimmers would have finished in under 35 minutes. 94/100 = 94%
$3.00 markup 72%
Thanks for helping
Answer:
$5.16
Step-by-step explanation:
3.00 times 0.72 is 2.16. Because it's a markup that means you add. 3.00 plus 2.16 is 5.16.
I am making mashed potatoes with 1.25 pounds of mashed potatoes, .14 pounds of olive oil, and .33 pounds of almond milk. How much will the final dish weigh?
Answer:
1.72 pounds
Step-by-step explanation:
1.25 + 0.14 + 0.33 =1.72 pounds
Y=3/2x+3
y=-3 solve.
GIVING BRAINLIEST!
What kinds of observations can you make that might indicate a chemical change is taking place?
Answer:
1. Color Change.
2. Production of an odor.
3. Change of Temperature.
4. Evolution of a gas (formation of bubbles)
5. Precipitate (formation of a solid)
Step-by-step explanation:
Evaluate the expression when a=3 and b= 19.
b-4a
Answer:
7
Step-by-step explanation:
19 - 4(3) = 19 - 12 = 7
please give me a brainiest
6,726 ÷ 85
with the remainder
Answer:
79.13
Step-by-step explanation:
i need help for this question
Answer:
4, 4, and 8
Step-by-step explanation:
2 cups * 2 marshmallows per cup = 4 marshmallows
8 marshmallows / 2 marshmallows per cup = 4 cups of hot cocoa
16 marshmallows / 2 marshmallows per cup = 8 cups of hot cocoa
Anna works in sales and earns $100 each week plus $15 per sale. This week, she wants to be paid at least $500. Which inequality can be used to find the number of sales she needs to make?
A. 100-15x ≤ 500
B. 100+15x ≤ 500
C. 100-15x ≥500
D. 100+15x ≥ 500
Answer:
its B I think so yea
Step-by-step explanation:
A basketball game has four quarters. The length of a game is 32 minutes. You play the entire game except 4.5 minutes. Write and solve an equation to find the mean time you play per quarter.
Answer: a little bit over 6 minutes i think
Step-by-step explanation:
A 2-column table with 7 rows. Column 1 is labeled x with entries 35, 35, 39, 44, 44, 48, 49. Column 2 is labeled y with entries 439, 440, 417, 615, 409, 403, 404. Leah claims the data in the table contains a cluster. Why is Leah’s statement true? There is no obvious outlier. The y-values are steadily increasing as the x-values are decreasing. The data contains a group of closely occurring points. Leah’s statement is not true.
Answer:
its c
Step-by-step explanation: A 2-column table with 7 rows. Column 1 is labeled x with entries 0.5, 1, 1.5, 1.5, 2, 2.25, 2.75. Column 2 is labeled y with entries 41, 35, 37, 36, 35, 30, 31.
The data set in the table forms a cluster and does not include outliers.
Which point, if added to the table, would be an outlier?
✔ (2.75, 41 )
Answer:
C. The data contains a group of closely occurring points
Step-by-step explanation:
Edge 2023
help me plssssssss :)
1 As a part of her project, Flora made a scale drawing of the zoo with a scale factor of
1 inch = 5.77 feet. If the diameter of the bug carousel in the drawing was 3 inches, determine the
actual diameter of the carousel.
Answer:
honestly I have no idea
Step-by-step explanation:
1x-3x=2x
a.
ordered pairs: {(4, –2), (0, 6), (2, 8)}
b.
ordered pairs: {(–2, 4), (0, 6), (2, 8)}
c.
ordered pairs: {(4, –2), (0, 6), (8, 2)}
d.
ordered pairs: {(–2, 4), (6, 0), (8, 2)}
Please select the best answer from the choices provided
Answer:
Can you give me some more context?
In a game, the probability of landing on yes is 1:2. How many times would you expect to land on yes if you spin the spinner 20 times?
Answer due at 12:00 pm Pacific Daylight Time.
Answer:
half of the time so 10 times
A motorcycle bought for $10,000 depreciates continuously at 9% per annum. What is the value after seven years round the answer to the nearest dollar
Answer:
Book value= $62.83
Step-by-step explanation:
Giving the following information:
A motorcycle bought for $10,000 depreciates continuously at 9% per annum.
First, we need to calculate the depreciation of seven years:
FV= PV*{[1+(-i/100)]^n}
FV= 10,000*{[1+(-0.09/100)]^7}
FV= $9937.17
Book value= 10,000 - 9,937.17
Book value= $62.83
Please help brooo
Rose and Natalie are saving money for a trip. The table shows the amount of money Rose saves each month.
The graph shows Natalie's savings.
Please help
Which statement about rose and natiles is true
A the women save the same amount of money each month
B the initial value of natalies savings is greater than rose
C the rate of change ROC for roes saving is less than natiles
D after 5 months natalies has saved more money than rose
What is the slope of the line on the graph
Answer:
its 2
Step-by-step explanation:
for every 1 x value, the y increases by 2
This equation has one solution. 3(x – 2) + 4x = 10(x + 1) What is the solution?
A.) -5
B.) -2
C.) -16/3
D.) -16/7
Answer:
C) -16/3
Step-by-step explanation:
3(x – 2) + 4x = 10(x + 1)
Multiply 3x-6+4x=10x+10
Combine like terms 7x-6=10x+10
Subtract 7x from both sides -6=3x+10
Subtract 10 from both sides -16=3x
Divide -16/3=x
Answer:
Choice C -16/3
Step-by-step explanation:
3(x – 2) + 4x = 10(x + 1) <-- Distribute
3x - 6 + 4x = 10x + 10 <-- Combine all like terms
7x - 6 = 10x + 10 <-- Combine all like terms in one side
7x - 10x = 10 + 6 <-- Simplify
-3x = 16 <-- Isolate x by dividing
x = -16/3
Which algebraic expression represents the phrase “seven more than half of a number”?
7 minus one-half x
Negative 7 + one-half x
One-half x + 7
Negative one-half x minus 7
Answer:
C: 1/2x +7
Step-by-step explanation:
PLEASE HELP ASAP. GIVE ANSWER AND BRIEF EXPLANATION.
The graph is attached
Determine whether the function shown in the graph is even or odd.
A. The function is even because it is symmetric with respect to the y-axis.
B. The function is odd because it is symmetric with respect to the y-axis.
C. The function is even because it is symmetric with respect to the origin.
D. The function is odd because it is symmetric with respect to the origin.
help ⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️
Answer:
.66
Step-by-step explanation:
write the expression n n n n n n using an exponent. Name the base and the exponent.
Answer:
n⁶
Step-by-step explanation:
Base= n
exponent=⁶
I need help don’t understand
okay first off: we both use the same virtual school and i just thought that was cool lol
the equation for g(x) is g(x)=4x-5 so when you substitute in x it becomes
g(x)= 4(2) -5 or g(x)= 8-5 which equals g(x)=3
when you substitute in x, f(x) becomes
f(x)= 2 + 1 which equals f(x)=3
therefore when x=2, both functions are equal :)
hope this helps!!