Answer:
It would take 1.25 hours,
Step-by-step explanation:
if you multiple 2/9 by 4.5 you will get 9 so you need to do the same for 5 which gives you 22.5 which divided by 18 gives you 1.25
Can someone pls help me with this first right answer gets brainlist
This is the second answer of the first one :D ! Math again btw :3
Answer:
BELOW
Step-by-step explanation:
Maria can give away two pencils to Ted to make the total to Ted's pencils 11. Then Lucida can also give away 1 pencil to Ted so that he has 12. After that each person will have 12 pencils.
HOPE THIS HELPED
A person stands 12 meters east of an intersection and watches a car driving away from the intersection to the north at 4 meters per second. At a certain instant, the car is 9 meters from the intersection. What is the rate of change of the distance between the car and the person at that instant (in meters per second)?
Answer: the rate of change of the distance between the car and the person at that instant is 4 meters per second
Step-by-step explanation:
According to the Pythagorean theorem, we have:
d^2 = (12^2 + 9^2)
Differentiating both sides with respect to time:
2d * (dd/dt) = 0 + 2(9) * (9''), Simplifying the equation, we get:
2d * (dd/dt) = 2(9) * (9'')
Substituting the given values:
2d * (dd/dt) = 2(9) * (4) [the car is moving at a constant velocity of 4 m/s]
Simplifying further:
2d * (dd/dt) = 72
we divide both sides by 2d:
dd/dt = 72 / (2d)
substitute this value into the equation to find the rate of change of the distance:
dd/dt = 72 / (2 * 9) = 4 m/s
The rate of change of the distance between the car and the person at that instant is -12/5 meters per second.
Given information:
The person is standing 12 meters east of the intersection.
The car is driving away from the intersection to the north at a constant speed of 4 meters per second.
At a certain instant, the car is 9 meters from the intersection.
Using the Pythagorean theorem, determine D(t) in terms of the car's distance from the intersection, which we'll call x(t).
Since the person is 12 meters east of the intersection, the distance D(t) can be expressed as:
\(D(t) = \sqrt{(x(t)^2 + 12^2)\)
Differentiating both sides of the equation with respect to time, we get:
\(dD/dt = (1/2) * (x(t)^2 + 12^2)^{(-1/2)} * 2x(t) * dx(t)/dt\)
So, dx(t)/dt = -4
Substituting this value into the equation for dD/dt, we have:
\(dD/dt = (1/2) * (x(t)^2 + 12^2)^{(-1/2)} * 2x(t) * (-4)\)
\(dD/dt = -4x(t) / \sqrt{(x(t)^2 + 144)\)
At the instant when the car is 9 meters from the intersection, substitute x(t) = 9 into the equation:
\(dD/dt = -4(9) / \sqrt{(9^2 + 144)\)
= -36 / √(81 + 144)
= -36 / √225
= -36 / 15
= -12/5
Therefore, the rate of change is -12/5 meters per second.
Learn more about Rate of change here:
https://brainly.com/question/29181688
#SPJ12
I need help ASP!!! LAST QUESTION!!!
HELP IM STUCK
Directions: Answer all of the questions below, making sure to show your work. You may attach the work separately. Round to the nearest whole percent when necessary.
1. You really want to buy a new iPhone with money you received for Christmas. Last month the iPhone was priced at $999, and this month it is on sale for $699. What is the markdown between the two prices? What is the percent markdown?
2. Santa estimated that he needed to deliver 8,459 presents on Christmas night. After counting, the elves realized that Santa actually had to deliver 9,870 presents. Find the percent error.
3. In 2018, U.S. households spent an average of $1,536 during the Christmas holidays. In 2019, the average amount spent was $1,496. What is the percent change between spending in 2018 and 2019?
4. Looking at the lights on a Christmas Tree, Holly guessed that there were 228 lights on the tree. She found out later that there were actually 240 lights on the tree. Find the percent error.
5. On Christmas Day, the weatherman predicted that there would be 14 inches of snow. It ended up snowing only 9 inches on Christmas Day. What is the percent error?
6. Noel wanted to buy the video game Halo Infinite with a gift card he received for Christmas. Two months ago the price of the game was $49.99 and now the game is $65.99. What is the markup between the two prices? What is the percent markup?
7. The amount of carolers in the neighborhood Christmas caroling group was 20 last year. This year there were 28 people. What is the percent change between last year and this year?
8. You decide to buy your dad a new fishing rod for Christmas. The price of the rod was $59 with 8% sales tax. What was the amount of sales tax on the purchase? What was the total cost including sales tax?
9. Your mom wanted a new tart warmer for Christmas. You decide to buy her one from Scentsy for $20. The person who sold you the tart warmer makes 2.5% commission off your purchase. How much commission did they earn?
10. Part A: Out of Santa’s elves in his workshop, 80% finished making their toys early. If 24 elves finished working early, how many elves were in the workshop in all?
Part B: If 9 elves quit this year, what is the percent decrease in Santa’s elves?
Answer:
hello who is your day i hope it be a owsome day bye
A recipe calls for 3 cups of milk for every 2 cups of flour. If you have 15 cups of milk, how many cups of flour will you need?
help! i dont this math problem please due soon!
Answer:
12x12 12x6 H = 46cm
Step-by-step explanation:
took quiz
Answer:
46 cm
Step-by-step explanation:
I learned this formula in math last year
Sam rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of 99 cents for each mile driven. Sam had to pay $162.53 when he returned the truck. For how many miles did he drive the truck?
HELP THIS IS DUE TMR
Someone help w pre-algebra, smth about proportional data
Answer:
The answer is no because for 1 hour he gets 20 dollars and for 2 hours he gets 30$ (which is less for working 2 hours). So, if you multiply 2 hours with 20 dollars, you should get 40, not 30. So therefore, it is not proportional. And same for 3 hours: multiply 3 with 20 to get 60, not 50.
Needs to be positive exponent
I need the answer to this math problome please and thank you.
Answer:
9 1/5
Step-by-step explanation:
Answer:
\(9 \frac{1}{5} \)
Step-by-step explanation:
This is because there are 2/4/5 sections with the size of 3/2/7.
Therefore, the answer is
\(2\frac{4}{5} \times 3 \frac{2}{7} = 9\frac{1}{5} \)
Part A
The table shows the cost of 4 tickets at two different laser tag facilities.
Laser Tag Facility Cost ($)
LaserFun 25
Laser Tag & More 27
What equation can be used to model the total cost, y, for x tickets at Laser Tag & More? Write the equation in the form y=kx .
Part B
Fill in the blank question.
The total cost of 7 tickets at Laser Tag & More is $
.
Answer:
¯\_(ツ)_/¯
Step-by-step explanation:
¯\_(ツ)_/¯
Divide: 6 ÷ 1
2
Choose the expression that shows the correct way to use the rule “multiply by the reciprocal.”
One-sixth times StartFraction 2 Over 1 EndFraction
StartFraction 6 Over 1 EndFraction times one-half
6 times 2
One-sixth times one-half
Answer:
6x2
Step-by-step explanation:
edge 2020
Answer:
6x2
Step-by-step explanation:
I got it right on my test.
The price of Stock A at 9 A.M. was $15.75. Since then, the price has been increasing at the rate of $0.05 per hour. At noon, the price of Stock B was $16.53. It begins to decrease at a rate of $0.13 per hour. If the stocks continue to increase and decrease at the same rates, in how many hours will the prices of the stocks be the same?
Answer:
the price of Stock A and Stock B will be the same after 3.5 hours.
Step-by-step explanation:
15.75 + (0.05 × 3) = 15.90
15.90 + 0.05t= 16.53 - 0.13t
0.05t + 0.13t = 16.53 - 15.90
0.18t = 0.63
t = (0.63 ÷ 0.18)
t = 3.5
Which equation can be used to find m, the midpoint of the
two numbers?
(m - 5)(m + 5) = 99
(m - 10)(m + 10) = 99
m2 - 25 = -99
m² – 100 = -99
Answer: D
Step-by-step explanation:
Answer:the correct answer is D
Find the output, k, when the input, t, is -7.
k = 10t -19
k=?
Answer:
-89
Step-by-step explanation:
k = 10(-7) - 19
k = -70 - 19
k= -89
Answer:
k=-89Step-by-step explanation:
to understand the solving stepsyou need to know about:algebraPEMDASgiven:k=10t-19
t=-7
to find:k
let's solve:k=10t-19 (given)
k=10.-7-19 (as t=-7)
k=-70-19 (multiply)
k=-(70+19) (factor out negative sign from the expression)
k=-(89) (add)
k=-89
3x+y=9
find the y intercept and the x intercept
Answer:
y-int = 9, x-int = 3
Step-by-step explanation:
To find x and Y intercepts, set x or y equal to zero
1.) to Find Y-int, plug in 0 for x
3(0) + y = 9
y = 9
2.) To find x-int, set Y equal to 0
3x + (0) = 9
3x = 9
divide by 3
x = 3
Answer: X=3
Y=9
Step-by-step explanation: Hope this helps have a great day:)
48 divided by 22,032
Please work it out if not, I will give a bad rating
Points for answering: 20
48 divided by 22032 can be written as 48/22032, if you use your calculator and put that in you will get 0.00217864923 as your answer.
Dividing 48 by 22,032 with long division method we get approximately 0.00218 as answer:
What are mathematics operations?
• An operation is a function in mathematics that converts zero or more input values (also known as "operands" or "arguments") to a well-defined output value.
• The operation's arity is determined by the number of operands.
• Binary operations (i.e., operations of arity 2), such as addition and multiplication, and unary operations (i.e., operations of arity 1), such as additive inverse and multiplicative inverse, are the most commonly studied operations.
• A zero-arity operation, also known as a nullary operation, is a constant.
• The mixed product is an example of an arity 3 operation, also known as a ternary operation.
Here, it is given that :
48 is divisor and 22032 is the dividend
therefore, dividing 48 by 22,032 with long division method we get approximately 0.00218 as answer:
48/22032 ≈ 0.00218
Read more about mathematics operations at:
https://brainly.com/question/17869111
#SPJ2
Write a sentence for the formula. Then interpret the equation in the context of the situation.
The formula for the volume of a cylinder is V=\(\pi r^{2} h\)h, where V is the volume, r is the length of the radius of the base, and h is the height of the cylinder.
Answer: The volume for a cylinder is pi times radius squared multiplied by height. If the radius for the base of a cylinder is 2 inches, and its height is 8 inches, we square our radius 2 and get 4. Then we multiply this by pi which would be 3.14, to get 12.56. Then we multiply the product by height (8), 12.56 times 8, is 100.48 inches which is the volume of the cylinder.
Step-by-step explanation:
The formula to calculate the volume of a cylinder is:
\(\boldsymbol{\sf{V=\pi r^{2}h }}\), where
V = VolumeR = radiusH = Heightπ = PThe cylinder has radius and height.
To calculate the volume, we substitute the data in the formula, which are the radius and the height.
First calculate the radius squared. Then the value of PI is multiplied, which the value is 3.14 by the radius in cm^2 by the height. And in this way the volume of the cylinder will be calculated.
thanks for the help guys lol
Answer:
1. 5,750,000,000
2. 0.00068
3. 520,000,000
Step-by-step explanation:
After the decimal point, the amount of numbers have to be the same amount as the exponents. So it wouldnt be 575000000000, but instead it would be 5750000000. Because 5.75, the numbers after the decimal point count, so instead an easier way would be to subtract the number of exponents ( 5.75 x `0^9) with the amount of numbers after the decimal point. So 9 - 2 = 7. So there should be 7 zeros after the number. If it doesnt make sense, dont worry, youll get the hang of it.
Answer:
3.)5750000000
4.)0.00068
5.)520000000
Step-by-step explanation:
ANSWER ASAP ( Remember to pull out the GCF or you will get it wrong)
Select the factor form equivalent to -16p+20w-12
A
-2(8p-10w+6)
B
8(-2p +6w -4)
C
-4(4p-5w+3)
D
-5(11p-4w +7)
Answer:
A
Step-by-step explanation:
A
Pls, help! A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number less than 3. Find the probability of not rolling a number less than 3.
1/3; 2/3
1/2; 1/2
5/6; 1/2
1/6; 5/6
Brainlist for positive attitude and correct answer :D
Answer: The correct answer is:
Probability of rolling a number less than 3: 2/6 or 1/3
Step-by-step explanation:
Explanation: Out of the six possible outcomes (numbers 1, 2, 3, 4, 5, 6), there are two outcomes that meet the condition of rolling a number less than 3, which are 1 and 2. Therefore, the probability of rolling a number less than 3 is 2 out of 6, which simplifies to 1/3.
Probability of not rolling a number less than 3: 4/6 or 2/3.
Explanation: To find the probability of not rolling a number less than 3, we consider the outcomes that are not favorable (i.e., rolling a 3, 4, 5, or 6). There are four such outcomes, so the probability of not rolling a number less than 3 is 4 out of 6, which simplifies to 2/3. :D
: A clogged bathtub drains at a constant rate. The amount of water in the bathtub changes by – 3.75 gallons in one hour. What is the change in the amount of water in the bathtub after 13 of an hour? a. – 1.25 gallons b. – 2.25 gallons c. – 6.25 gallons d. – 11.25 gallons
Answer:
1/3 * -3.75 = -1.25
1.25 gallons would drain
I hope this helps ^^
Answer:
763737
Step-by-step explanation:
Factor the polynomial
16z2 + 25
16z^2 + 25
This polynomial is already in lowest terms.
Answer: Cannot be factored.
This happens with certain polynomials.
Select all equations that have graphs with the same y-intercept.
y = 3x - 8
y = 3x - 9
y = 3x + 8
y = 5x - 8
y = 2x - 8
y = ⅓x - 8
How would you express the matching y-intercepts as a point?
How to do this? I confused lol.
Answer:
31 cm²
Step-by-step explanation:
First find the are of the triangle, then subtract the are of the square
Area triangle = 1/2b * h
Area triangle = 1/2(14*5)
Area triangle = 1/2(70)
Area triangle = 35
Now the area of the square
Area square = 2 * 2
Area square = 4
Now subtract
Area shaded = 35 - 4
Area shaded = 31
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Can Someone Help :,)
PART A
Maya has a recipe for blueberry chocolate chip muffins. She doesn't like a lot of oats but loves blueberries, so she is using 3/4 of the number of oats called for and increasing the number of blueberries by 1/4 of the original amount. She then wants to double her new recipe.
Ingredient Amount (cups)
Blueberries 34
Chocolate Chips 1
Oats 12
White Sugar 1
How many cups of oats will Maya need? Write your answer as a fraction in simplest form.
PART B:
How many cups of blueberries will Maya need? Write your answer as a mixed number in simplest form.
Hari gives Sai some money. If 1/9 of the money was spent on food and 2/5 of the money was spent on clothes, how much money did Hari give to Sai?
PLEASE ANSWER ASAP
Thank you
The length of a rectangular garden is 20 feet and the width is 15 feet. What is ratio of length to width?
Answer: 4:3 because 20 divided by 5 is 4 and 15 divided by 5 is 3.