Mr.Clark takes 25 minutes to brush his teeth. Mrs. Clark spends
20% longer brushing her teeth. In total, how much time does Mrs.Clark spend brushing her teeth ?
Clark spend brushing her teet
Answers
Answer:
30
Step-by-step explanation:
25 times 1.2= 30
Answer:
30
Step-by-step explanation:
Related Questions
can you help me answer 20, 10 and 6 please
Answers
Let us the question 10. In this case
\(z=\frac{t^2+5t+2}{t+3}\)Since the second degree polynomial cannott be factored, we must compute the derivative by means of the quotient rule
\(z^{\prime}=\frac{(t+3)(2t+5)-(t^2+5t+2)(1)}{(t+3)^2}\)Hence, we have
\(z^{\prime}=\frac{2t^2+5t+6t+15-(t^2+5t+2)}{(t+3)^2}\)which is equal to
\(z^{\prime}=\frac{2t^2+5t+6t+15-t^2-5t-2)}{(t+3)^2}\)It yields,
\(z^{\prime}=\frac{t^2+6t+13}{(t+3)^2}\)since the polynomial on top cannot be factored, therefore this is the final answer.
Let us see question 20. In this case
\(f(x)=e^{-2x}\cdot\sin x\)By applying the chain rule, we have
\(f^{\prime}(x)=e^{-2x}\cdot cosx+(-2)e^{-2x}\cdot\sin x\)Finally, this can be rewritten as
\(f^{\prime}(x)=e^{-2x}(\cos x-2\sin x)\)Let us see question 6. In this case
\(w=(t^3+5t)(t^2-7t+2)\)By applying the chain rule, we obtain
\(w^{\prime}=(t^3+5t)(2t-7)+(3t^2+5)(t^2-7t+2)\)by computing the products, we have
\(w^{\prime}=(2t^4-7t^3+10t-35)+(3t^4-21t^3+6t^2+5t^2-35t+10)\)hence, it yields
\(w^{\prime}=5t^4-28t^3+11t^2-25t-25\)divide the polynomials x^2-10,000/x-100
Answers
Answer:
x+100
Step-by-step explanation:
x^2-10,000/x-100
x^2-10000 is a difference in squares and can be factored.
x^2-10000 = (x+100)(×-100).
(x+100)(x-100)/(x-100)
(x-100) cancel each other.
x+100 remains.
A gardener uses 20 gallons of water each week on his 8-foot by 10-foot vegetable garden. He plans to enlarge his
garden to 24 feet by 30 feet.
How much water would he expect to use on his new garden? Show all of your work and provide a brief explanation with your answer.
Answers
Answer:
60 gallons
Step-by-step explanation:
so he enlarged it by three so it would be 24by30
because of that, you have to multiply 20g by 3 also
that gives you 60 gallons
A tank in the shape of a hemisphere has a diameter of 24 feet. If the liquid that fills the tank has a density of 92.5 pounds per cubic foot, what is the total weight of the liquid in the tank, to the nearest full pound?
Answers
The total weight of the liquid in the tank is approximately 12,628 pounds.
To calculate the weight of the liquid, we need to determine the volume of the hemisphere and then multiply it by the density of the liquid. The formula for the volume of a hemisphere is V = (2/3)πr³, where r is the radius of the hemisphere.
In this case, the diameter of the tank is given as 24 feet, so the radius is half of that, which is 12 feet. Plugging this value into the formula, we get V = (2/3)π(12)³ ≈ 904.78 cubic feet.
Finally, we multiply the volume by the density of the liquid: 904.78 cubic feet * 92.5 pounds per cubic foot ≈ 12,628 pounds. Therefore, the total weight of the liquid in the tank is approximately 12,628 pounds.
In summary, to calculate the weight of the liquid in the tank, we first determine the volume of the hemisphere using the formula V = (2/3)πr³. Then, we multiply the volume by the density of the liquid.
By substituting the given diameter of 24 feet and using the appropriate conversions, we find that the total weight of the liquid is approximately 12,628 pounds.
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if you can run 5 miles in 45 minutes how fast is this in miles per hour?
Answers
Answer:
6.67 Miles Per Hour
Step-by-step explanation:
Answer:
0.9 mph
Step-by-step explanation:
I NEED HELP FAST
Hawaiian monk seals dives to a dept of -4.13 meters. By how many meters does it need to change his position to get back to sea level?
Answers
Answer:
45
Step-by-step explanation:
solve the inequality 1/3h≤7
Answers
Answer:
h ≤ 21
Step-by-step explanation:
Simply just divide both sides by 1/3 to isolate x and you should get your answer!
Answer:
h ≤ 21
Step-by-step explanation:
1/3h ≤ 7
Multiply 1/3 on both sides of the inequality.
1/3(1/3h) ≤ 1/3(7)
h ≤ 1/3(7)
Reciprocal 1/3.
h ≤ 7(3/1)
h ≤ 21
It's the computer seice can u help me
Answers
Answer:
I can help you, just tell me what it is.
Step-by-step explanation:
Step 1: Tell me the problem
Step 2: Wait for a response.
Answer:
yes it can help in some ways I think
Which statement best describes a cause and effect structure of a speech?
o It discusses similarities and differences between two different topics,
O It shows the challenges of a topic and explains how the issue can be solved.
O It provides the audience with the order in which events happened.
o It presents the reasons something happened and describes the result.
Answers
Answer:
Fourth option
Step-by-step explanation:
Cause and effect all starts with a reason for a certain event, for example perhaps a group of children going into an abandoned house that is rumored to be "haunted", which caused an effect. So, in this case the children going into an abandoned house that is rumored to be haunted (cause) which then lead into a result, a ghost started to chase them around the house in till they could manage an escape. (effect) Although creating a very good story for us to read, cause and effect has real life examples. The answer is the fourth option or "it presents the reasons something happened and describes the result."
Hope this helps.
Which of the following explains why this inequality is true?
7 3/8 × 4/5 < 7 3/8
The answers I have to choose from are:
A. When 7 3/8 is multiplied by a number greater than 1, the product is more than 7 3/8
B. When 7 3/8 is multiplied by a number greater than 1, the product is less than 7 3/8
C. When 7 3/8 is multiplied by a number less than 1, the product is more than 7 3/8
D. When 7 3/8 is multiplied by a number less than 1, the product is less than 7 3/8.
Answers
The correct option is B: The result of multiplying 7 3/8 by a number larger than 1 is less than 7 3/8.
Explain about the term mixed fractions:Once kids have a firm grasp on right fractions, they are exposed to mixed numbers and improper fractions.
Divide the numerator and denominator to create a mixed fractions from an incorrect fraction. The solution to this problem is the whole number portion; the leftover portion is the numerator; its denominator stays the same.
We can convert the two fractions to decimal form in order to compare them.
7.375 is equivalent to 7 3/8, and
4/5 is equivalent to 0.8.
7.375 multiplied by 0.8 results in:
7.375 × 0.8 = 5.9
Since the result is 5.9, which is less than 7.375, it follows that 7 3/8 multiplied by 4/5 is less than 7 3/8.
Thus, the result of multiplying 7 3/8 by a number larger than 1 is less than 7 3/8.
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Here is a visual pattern. first shape s=1 (has 3 squares) s=2 (has 8 squares) s=3 (has 15 squares) Question A. determine the number of tiles when s=4. Question B: Write an expression for the number of tiles in figure s. PLEASE HEEELLLPPPP!!!
Answers
The number of tiles when s = 4 is 24 and and the expression is s² + 2
Determining the number of tiles when s = 4.From the question, we have the following parameters that can be used in our computation:
s = 1 has 3 squaress = 2 has 8 squaress = 3 has 15 squaresSee attachment for the visual pattern
From the above we can see that
The first difference is
8 - 3 = 5
15 - 8 = 7
And the second difference is
7 - 5 = 2
Let the number of squares for s = 4 be x
This means that
The first difference is
8 - 3 = 5
15 - 8 = 7
x - 15
The second difference is
x - 15 - 7 = 7 - 5
So, we have
x -22 = 2
Evaluate
x = 24
The expression for the number of tiles in figure sWe have
s = 1 has 3 squares
s = 2 has 8 squares
s = 3 has 15 squares
s = 4 has 24 squares
These pattern represent a quadratic pattern
So, we have
f(s) = as² + bs + c
Using the values, we have
a + b + c = 3
4a + 2b + c = 8
9a + 3b + c = 15
When solved, we have
a = 1, b = 2 and c = 0
So, we have
f(s) = s² + 2
Hence, the expression is s² + 2
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Helppp meee Pleaseee
Answers
Answer:
4
Step-by-step explanation:
I like to use the FOIL method! I've attached a quick picture of how it works below, but basically you multiply the first terms. Next, multiply the outside/outer terms. Then, multiply the inside/inner terms. Lastly, you multiply the last terms.
In this question, the binomial is (x + 2)².
You can expand this to be (x + 2)(x + 2).
When you expand it using the FOIL method, you get x times x, which is x².
Next, the outside/outer terms are x and 2, which is 2x.
Then, you multiply the inside/inner terms 2 and x, which is 2x.
Last, you multiply the last terms, which are 2 and 2, which is 4.
When you put them together, it looks like this:
x² + 2x + 2x + 4.
You can simplify this to x² + 4x + 4.
So your answer is 4.
what is the Y intercept in the linear equation y equals 1/10 x - 2
Answers
1/10x-2 = y
1/10(0)-2 = y
x = -2
(-2, 0)
本题已由中国数学会官方解答（现有会员：3人）
Find a polynomial function f(x) of degree 3 with zeros, 2, -3 , 5 and f(3)=6
Answers
A polynomial function f(x) of degree 3 with given zeros, 2, -3 , 5 and condition f(3)=6 is given by f(x) = -1/2 (x-2)(x+3)(x-5).
Degree of the polynomial function is equal to 3.
Zero's of the polynomial function is equal to 2, -3 , 5 .
And f(3) = 6
If 2, -3, and 5 are zeros of f(x), then we can write function as,
f(x) = a(x-2)(x+3)(x-5)
where a is some constant.
To determine the value of a, we can use the fact that f(3) = 6.
Substituting x = 3 into the equation above, we get,
f(3) = a(3-2)(3+3)(3-5)
= -12a
Here we have,
f(3) = 6, so we can set these two expressions equal to each other and solve for a,
⇒ -12a = 6
⇒ a = -1/2
Now we can substitute this value of a back into the equation for f(x) that we found earlier,
⇒ f(x) = -1/2 (x-2)(x+3)(x-5)
Therefore, a polynomial function f(x) of degree 3 with zeros 2, -3, 5, and f(3) = 6 is equal to f(x) = -1/2 (x-2)(x+3)(x-5).
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You spin a spinner that is equally divided into 9 parts. 3 parts are pink,
3 parts are speckled, and 3 parts are black.
What is the probability of the spinner stopping at a speckled section?
Write your answer as a percent rounded to the nearest whole number.
Answers
Answer:
33%
Step-by-step explanation:
9 parts divided by 3 categories is 3. 100 divided by 3 is 33.3%, which is 33% when rounded to the nearest whole number
Please please help please
Answers
Answer:
4 times larger
Step-by-step explanation:
36.24 divided by 9.06 is equal to
Answers
Answer:
4
Step-by-step explanation:
4.
Consider the following amount of energy
used for three different activities:
. 1 minute of walking uses
25 kilojoules of energy
A (4
• 1 minute of jogging uses 84 kilojoules
of energy
1 minute of swimming uses
50 kilojoules of energy
a) How many more kilojoules of energy
would you use in an hour of jogging
than an hour of swimming?
b) To the nearest tenth, how many
minutes of walking would you have to
do to burn up the 1,130 kilojoules in a candy bar
Answers
In given word problem ,
a) 2040 more kilojoules of energy would you use in an hour of jogging than an hour of swimming .
b) 45 minutes 2 seconds of walking would you have to do to burn up the 1,130 kilojoules in a candy bar.
What is word problem ?
Our extensive collection of math word problems ranges from addition, subtraction, multiplication, and division to more specialised operations. Mathematical questions that are written as one or more sentences and ask students to use their mathematical understanding to solve problems from "real-life" situations are known as word problems. As a result, for kids to understand the word problem, they need to be familiar with the terminology that goes along with the mathematical symbols that they are already used to.
Here the given ,
=> 1 minute walking = 25 kilojoules
=> 1 minute jogging = 84 kilojoules
=> 1 minute swimming = 50 kilojoules.
a) 1 hour = 60 minutes.
1 hour jogging = 60*84 = 5040 kilojoules.
1 hour swimming = 60*50 = 3000
Then , => 5040-3000=2040 kilojoules.
Therefore 2040 more kilojoules of energy would you use in an hour of jogging than an hour of swimming .
b) x minute of walking = 1130 kilojoules.
=> 25*x=1130
=> x = 1130/25 = 45minutes 2 seconds.
Therefore 45 minutes 2 seconds of walking would you have to
do to burn up the 1,130 kilojoules in a candy bar.
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Which correctly shows the title of a movie?
"In an Old House"
In an Old House
Answers
Answer:
The answer to your question is A "In an Old House" I hope this helps
Sorry if I am wrong
Answer: It would be "In an Old House"
Step-by-step explanation:
Suppose the distributor charges the artist a $40.00 cost for distribution, and the streaming services pay $4.00 per unit. (Note: One unit = one thousand streams)
Model the profit for the total number of streams by answering the questions below:
Use the cost for distribution to build your y-intercept. What is the y-intercept?
Hint: the y-intercept is a point on the y axis, so your answer should be an ordered pair.
Hint: you have to keep in mind that any time you pay for something, you are SPENDING money, if your y-intercept is incorrect, all your numbers will be off.
Use the payment per unit to build your slope. What is the slope?
Use the slope-intercept format (y = mx + b) to give the equation of the line. What is the equation of this line?
Graph the line by adjusting the sliders below. Show your line by attaching an image below.
After how many streams will you pay for the distributor charges? (Hint: this is where the line crosses the x-axis, round to the nearest thousand)
How many streams would it take to profit $750,000? (Hint: Remember one unit = one thousand streams)
Challenge Question: In 2020, Puerto Rican rapper Bad Bunny claimed the top spot of most-streamed artists globally on SPOTIFY, with more than 8.3 billion streams (8,300,000,000) this year from fans around the globe. His album YHLQMDLG—released in late February 2020, featuring collaborations with Sech, Anuel AA, and Daddy Yankee—is the number one streamed album as well. Calculate the profit earned using these numbers. (Hint: Use the slope-intercept format to build this equation. Also, remember one unit = one thousand streams).
Answers
The question is an illustration of a linear equation
The y-intercept is 40The slope is 4The equation of the line is \(y =4x + 40\)You pay the distributor after 1 chargeYou pay $750,000 for 177.5 streams(a) How to calculate the y-interceptFrom the question, we have the following parameters:
Cost of distribution: $40.00Rate = $4.00 per unitThe cost of distribution represents the y-intercept, while the rate represents the slope.
Hence, the y-intercept is 40
(b) How to calculate the slopeIn (a), we have:
The rate represents the slope.
Hence, the slope is 4
(c) The equation of the lineA linear equation is represented as:
\(y = mx + b\)
Where:
m represents the slopeb represents the y-interceptUsing the results in (a) and (b), the linear equation is:
\(y =4x + 40\)
See attachment for the graph of the equation
(c) The number of streams you pay the distributorFrom the graph, we can see that the line touches the x-axis at the negative x-axis.
This means that, you pay the distributor after 1 charge
(d) The number of streams to pay $750,000This means that: y = 750.
So, we have:
\(y =4x + 40\)
\(750 = 4x + 40\)
Subtract 40 from both sides
\(4x = 710\)
Divide both sides by 4
\(x = 177.5\)
Hence, you pay $750,000 for 177.5 streams
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URGENT PLEASE HELP simplify (3^8 / 3^5)^3
Answers
Which group of numbers even or odd include more prime numbers? Why?
Answers
The First group i.e 1-10 include more prime numbers .(2,3,5,7,1)
Because it has the basic inputs of every number Like 15 consists of 3×5Answer:
Odd numbers.Step-by-step explanation:
There is one even prime number - 2.
All the rest primes are odd numbers.
Therefore odd numbers include more primes.
what is -9.25 as a faction
Answers
Answer:
-37 / 4
Step-by-step explanation:
PLZ HELP FAST!!!!! I NEED THIS ANSWER PLEASE HELPPP
Answers
Answer:
L=7
W=10
Step-by-step explanation:
W=2L-4
WL=70
(2L-4)L=70
2L^2-4L-70=0
2(L^2-2L-35)=0
2(L-7)(L+5)=0
L-7=0
so:
L=7 IS THE LENGTH OF THE RECTANGLE.
W=2*7-4
W=14-4
W=10 IS THE WIDTH OF THE RECTANGLE.
PROOF:
7*10=70
70=70
The ratio of the sides of two similar squares is 2:3. If the area of the larger square is 225 square units, find the area of the smaller square.
Answers
To answer this question, we need to know that if we have that two figures are similar, then their corresponding sides are proportional - they have the same ratio. If we have, as in this case, the area, we need to square the ratio of the corresponding sides.
Then, if we have that the ratio of the sides of two similar squares is 2 : 3, then the ratio between their areas is the square of this ratio as follows:
Now, we have that the area of the larger square is 225 square units. Then, we have that the area of the smaller square is:
\(\frac{A_{smaller}}{A_{larger}}=\frac{4}{9}_{}\Rightarrow A_{smaller}=225\cdot\frac{4}{9}\Rightarrow A_{smaller}=100sq.units\)In summary, therefore, the area of the smaller square is equal to 100 square units.
Only need the 2nd part please
Answers
Answer:
6/11
Step-by-step explanation:
(36/121)^.5 = (36^.5)/(121^.5 )= 6/11
Sixty men can build a wall in 40days but though they begin the work together, 55 men quit every ten days. The Time needed to build the wall is?
Answers
It would take 370 days to build the wall with the given conditions.
If 60 men can build a wall in 40 days, then the total man-days required to build the wall is:
60 men x 40 days = 2400 man-days
However, 55 men quit every ten days, which means that after 10 days, there are only 60 - 55 = 5 men left to work on the wall. After 20 days, there are only 5 - 55 = -50 men left, which means that the remaining 5 men cannot work any faster than they were already working. Therefore, we can assume that the remaining 5 men complete the wall on their own.
The number of man-days required for the first 10 days is:
60 men x 10 days = 600 man-days
The number of man-days required for the second 10 days is:
5 men x 10 days = 50 man-days
The total number of man-days required for the first 20 days is:
600 man-days + 50 man-days = 650 man-days
The remaining work can be completed by the 5 men in:
2400 man-days - 650 man-days = 1750 man-days
Therefore, the total time needed to build the wall is:
20 days + 1750 man-days / 5 men = 20 + 350 days = 370 days
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Please answer
On the last page of her spiral
she found a note that tells
her to multiply the number
of
pages she has filled by 17.
The note also tells her to
take her answer to the
school office
to pick up a prize if the
answer is correct. What is
the correct answer?
A 2,432
B 1,240
C 2,346
D 2,436
Answers
Answer:
the correct answer is 2,432
Help this is trigonometry I think 35 points!!
Answers
Answer:
y = 16.3
Step-by-step explanation:
We would apply the formula for altitude of a right triangle which is given as:
h = √(xy)
Where,
h = 14
x = 12
y = y = ?
Plug in the values
14 = √(12*y)
14² = (√(12*y) (squaring both sides)
196 = 12*y
196/12 = 12y/12 (division property of equality)
16.3 = y (nearest tenth)
y = 16.3
X=8
–5x + 5y = –10
solve for Y
Answers
Answer:
y=6
Step-by-step explanation:
-5(8) + 5y = -10
-40 + 5y = -10
+40 +40
5y = 30
divide by 5
y = 6