Which of these is the most reasonable estimate for how many more hours Mina spent playing the piano last week than Ling? O between 1 and 2 hours O between 2 and 2 hours O between 2 and 3 hours O between 3 and 3 hours
Answers
Answer: between 2 and 3 hours
Step-by-step explanation:
Easiest method is to convert mixed fractions to decimals:
1-2/3 = 1.67
4-3/10 = 4.3
Ming hrs - Ling hrs = 4.3 - 1.67 = 2.63 hrs
2 < 2.63 < 3
Related Questions
If A is the center of dilation how can we find which point is the dilation of b?
Answers
Answer:
C is point of the dilation with a scale factor to 2
D is the point of the dilation with a scale factor of 1/3
Step-by-step explanation:
C is twice as far from A as B.
D is 1/3 the distance from A when compared to B
A bicyclist travels the first 800 m of a trip 1.4 minutes, the next 500 m in 1.6 minutes, and finishes up the final 1200 m in 2 minutes.
What is the total distance traveled on the bicycle?
______ meters
What is the total time the bike traveled?
_______ minutes
Find the average speed (in meters/min) of the bicyclist for this trip. _______ meters
Answers
The total distance traveled on the bicycle is 2500m
The total time the bike traveled is 19.4 minutes.
The average speed (in meters/min) of the bicyclist for this trip is 128.9 m/minutes.
What is speed?Speed is the rate at which an object's location changes in a particular direction. The distance traveled on relation changes to a particular direction. The distance in relation to the time it took to travel the distance is the speed.
The total distance traveled on the bicycle will be:
= 800 + 500 + 1200
= 2500m
The total time the bike traveled will be:
= 1.4 + 16 + 2
= 19.4 minutes
Speed = Distance / Time
= 2500 / 19.4
= 128.9 meters per minute
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The table shows a proportional relationship. x 15 9 21 y 5 3 7 Describe what the graph of the proportional relationship would look like. A line passes through the point (0, 0) and continues through the point (15, 5). A line passes through the point (0, 0) and continues through the point (7, 21). A line passes through the point (0, 0) and continues through the point (5, 15). A line passes through the point (0, 0) and continues through the point (3, 9).
Answers
The option that describes the graph of the proportional relationship is the option;
A line passes through the point (0, 0) and continues through the point (15, 5).What is a proportional relationship?
A proportional relationship is one in which one variable in the relationship is a constant multiple of the other variable.
The table of values can be presented as follows;
x; 15 9 21
y; 5 3 7
The domain of the function is therefore; 15, 9, 21
The range of the function is therefore; 5, 3, 7
The coordinates of points on the graph of the function is therefore;
(15, 5), (9, 3), (21, 7)
The relationship between the xi and y-values of the function is therefore;
5/15 = 3/9 = 7/21 = 1/3
The constant of proportionality in the relationship is 1/3
The relationship is therefore a proportional relationship.
The characteristics of the graph of a proportional relationship includes;
The graph passes through the origin, (0, 0).
The correct option that therefore describes the graph is the option;
A line passes through the point (0, 0), and continues through the point (15, 5)
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A 12 ft ladder reaches 9 ft up a wall.
What is the angle formed between the
ladder and the ground?
Answers
Answer:
Step-by-step explanation:
A town's population is 47,750 . About 100 people move out of the town each month. Each month,175 people on average move into town. A nearby town has a population of 50,500. It has no one moving in and an average of people moving away every month. In about how many months will the populations of the towns be equal? Write an equation to model the situation. Then solve the equation and answer the question.
Which equation models the situation?
Answers
The equation that models the given situation is; 175x - 100x + 47750 = 50500 - 200x
The number of months it will take the populations to be equal is 10 months
How to model the equation of the word problem?Let us suppose after x months the population of both town's will be equal.
From the given directions, we have;
The population of the first town after x months is given by;
175x - 100x + 47750
The population of the second town after x months is given by;
50500 - 200x
Now, In order to the population of the both town's to be equal, we have;
175x - 100x + 47750 = 50500 - 200x
275x = 50500 - 47750
x = 2750/275
x = 10
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what is the value of x?
Options: 4, 3, 5, 2
Answers
Answer: X = 3
Step-by-step explanation:
3x + 6 = 15
6x - 3 = 15
5 times 3 = 15
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Answers
Answer:
17.3
Step-by-step explanation:
The curvature of a circle is inversely proportional to its radius. What is the exact circumference of a circle with one-third the curvature of a circle of radius 1?
Answers
The circumference of a circle with one-third the curvature of a circle of radius 1 is 18.85 units
What is circumference ?
The perimeter of a circle is known as its circumference. It is the length of the circle's whole perimeter. The diameter of a circle and the constant are multiplied to get the circumference of the circle. This measurement of a circle's circumference is necessary for someone to cross a circular park or for a circle-shaped table to have a border. The units of the circumference are the same as the units of length and it is a linear value.
If a circle has a radius of 1,
the curvature is inversely proportional to this
So, the curvature= 1
A circle with a curvature of 1/3 :
radius=3
Thus, the circumference of the circle = 2 *π * radius
= 2*π * 3
= 6π
≈ 18.85 units
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The width of a rectangle is 4 more than the length. If the perimeter is 36 cm, ind the dimensions (length and width) of the rectangle.
Answers
Answer with step-by-step explanation:
Let the width of the rectangle be x.
Given that,
length ⇒ 4
width ⇒ x + 4 ( Because, the rectangle's width is 4 more than the length.)
Perimeter ⇒ 36cm
The formula to find the perimeter of rectangle is:
P = 2 ( l + w )
Now to find the value of x replace P, l & w with 36, 4 & (x + 4) with respectively.
P = 2 ( l + w )
36 = 2 ( 4 + x + 4 )
36 = 2 ( x + 8 )
Solve the brackets.
36 = 2x + 16
Substract 16 from both sides.
36 - 16 = 2x
20 = 2x
Divide both sides by 2.
10 = x
And now let us find the exact dimensions of the rectangle.
Length = 4 cm
Width = x + 4 = 10 + 4 = 14 cm
John read the first 114 pages of a novella, this was 3 pages less than 1/3
Answers
Answer:
351 pages
Step-by-step explanation:
In order to figure this out, we need to know what 114 plus 3 is.
114 + 3 = 117
Now that we have 117, we know that this is equal to 1/3 of the book.
In order to find out the total pages in this book, we need to multiply 117 by 3.
117 × 3 = 351
There are 351 pages in Johns book.
.Ansel wants to borrow $10,000 from the Hampton County Bank. They offered him a 6-year loan with an APR of 6.35 %. How much will he pay in interest over the life of the loan ?
Answers
Ansel has to pay an interest of $167.4 per months for the the life of the loan to the Hampton County Bank.
Explain the term APR?That yearly interest amount you'll spend if you have a balance off your credit card is referred to as the annual percentage rate (APR). Some credit cards feature variable APRs, which means that over time, your rate may go up or down. Your annual percentage rate, which is determined by the particulars of your loan and includes the interest rate as well as additional costs like borrower and mortgages broker fees, is often greater than your interest rate.The formula for the monthly installments are-
M = P(r/12)(1 + r)∧12t / (1 + r)∧12t - 1
Put the values;
Principal P =$10,000.
Rate of interest r = 6.35%
Time t = 6 years 72 months
M = 10,000(0.0635/12)(1 + 0.0635)∧72 / (1 + 0.0635)∧72 - 1
M = $167.4
Thus, Ansel has to pay an interest of $167.4 per month for the the life of the loan to Hampton County Bank.
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An adult harbor seal can eat food up to 6% of its body weight. If an adult harbor seal eats 18 pounds of food, how much does the adult harbor seal weigh? Use any strategy to solve.
Answers
The weight of the adult harbor seal is 300 pounds.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
An adult harbor seal can eat food up to 6% of its body weight.
An adult harbor seal eats 18 pounds of food
We need to find the adult harbor seal weigh
Let x be the weigh of food
6% of x= 18 pounds
Convert 6% to decimal
6/100=0.06
0.06x=18
Divide both sides by 0.06
x=300
Hence, the weight of the adult harbor seal is 300 pounds.
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about how long is a real bed in real life
Answers
Answer:
All beds come in different shapes and sizes but for example a queen sized mattress is 60” x 80”
Step-by-step explanation:
Solve the system of quadratic equations, explain each step if possible:
Answers
The solutions to the system of equations formed by the linear equation 9 · x + 9 · y - 79 = 0 and the quadratic equation x² + 5 · x - y - 4 = 0 are (x₁, y₁) = (5 / 3, 64 / 9) and (x₂, y₂) = (- 23 / 3, 148 / 9).
How to solve a system of equations
Herein we find a system of equations formed by a linear equation and a quadratic equation. This system must be resolved by means of algebra properties. First, write the system of equations:
9 · x + 9 · y - 79 = 0
x² + 5 · x - y - 4 = 0
Second, clear the variable y in the first equation:
9 · x + 9 · y - 79 = 0
9 · y = 79 - 9 · x
y = 79 / 9 - x
Third, substitute y on the second equation:
x² + 5 · x - (79 / 9 - x) - 4 = 0
x² + 6 · x - 115 / 9 = 0
Fourth, use the quadratic equation to find the solutions of x:
x₁ = 5 / 3, x₂ = - 23 / 3
Fifth, calculate the solutions of y:
y₁ = 79 / 9 - x₁
y₁ = 64 / 9
y₂ = 79 / 9 - x₂
y₂ = 148 / 9
The solutions are (x₁, y₁) = (5 / 3, 64 / 9) and (x₂, y₂) = (- 23 / 3, 148 / 9).
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(LOTS OF POINTS)
4. (Multiple Choice) In the figure shown, which of the following is the greatest?
A. a
B. b
C. c
D. d
E: e
Answers
Answer:
The answer is e
Step-by-step explanation:
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Given the inequality 4x ≤ 28, which of the following is a solution that makes the inequality true?
Answers
For the inequality 4x ≤ 28 the solution that makes the inequality true will be x≤7.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
It is given that the inequality is 4x ≤ 28.
Now that the equation has been simplified, we obtain both sides of the inequality equation, divide by 4, and we obtain
x ≤ 7
As a result, x must be less than or equal to 7.
The requirement for x is satisfied by any numbers that are less than or equal to 7.
Thus, for the inequality 4x ≤ 28 the solution that makes the inequality true will be x≤7.
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Answer:
a
Step-by-step explanation:
7
Crumbs Cookies was interested in seeing if there was an association between cookie flavor and whether or not there was frosting. Given are the results of the last week's orders. Frosting No Frosting Total Sugar Cookie 56 Chocolate Chip 70 136 Red Velvet 50 Total 180 400 Which category has the greatest joint frequency? Sugar cookies Cookies with no frosting Chocolate chip cookies with frosting Sugar cookies with no frosting
Answers
The category which has the greatest joint frequency is sugar cookies with a frequency of frosting and no frosting as 56 and 120 and a joint frequency of 176
Which category has the highest joint frequency?Frosting No frosting Total
sugar cookies 56 120 176
Chocolate cookie 66 70 136
Red velvet 38 50 88
Total 160 240 400
Chocolate cookies with frosting = Total chocolate cookies - chocolate cookies with no frosting
= 136 - 70
= 66
Red velvet cookies with frosting = Total cookies with frosting - (Chocolate cookies with frosting + sugar cookies with frosting)
= 160 - (56 + 66)
= 160 - 122
= 38
Total red velvet cookies = Red velvet cookies with frosting + Red velvet cookies with no frosting
= 50 + 38
= 88
Total cookies with no frosting = Total cookies - Total cookies with frosting
= 400 - 160
= 240
Total sugar cookies with no frosting = Total cookies with no frosting - (chocolate cookies with no frosting + Red velvet cookies with no frosting)
= 240 - (70 + 50)
= 240 - 120
= 120
Total sugar cookies = Total sugar cookies with no frosting + Total sugar cookies with frosting
= 120 + 56
= 176
In conclusion, the highest joint frequency is sugar cookies.
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Can someone solve this please? Where to put the points
Answers
Answer:
(40, 100) (x,y) Also, In the image below
Step-by-step explanation:
I used this website to do this. It is a very accurate website I used it all the time in algebra. So it should be right
I hope this helps!!!
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Two ocean beaches are being affected by erosion. The table shows the width, in feet, of each beach at high tide measured where 1995 is represented by year 0.
Year number Western Beach width (in feet) Dunes Beach width (in feet)
0 100 20
5 90 45
10 80 70
11 78 75
12 76 80
15 70 95
Describe the patterns shown by the erosion data measurements shown for each of the beaches in the table.
Between which years will the beaches have approximately the same width?
Assuming these rates remain constant, what can you do to get a better approximation of when the two beaches will have the same width?
Answers
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The half-life of a drug in the bloodstream is 14 hours. What fraction of the original drug dose remains in 36 hours? in 72 hours?
What fraction of the original drug dose remains in 36 hours?
(Do not round until the final answer. Then round to the nearest hundredth as needed.)
Answers
16.82 % and 2.83% of the original drug dose remain in 36 hours and 72 hours respectively.
What is half-life?
Half-life is a characteristic unit for the exponential decay equation and is constant across the lifespan of an exponentially decaying quantity.
Given, the half-life of a drug(h) = 14 hours
The first condition, time duration (t) = 36 hours
Then, the half-life of the substance can be calculated by:
[tex]A = A_{0} * (1/2)^{\frac{t}{h} }[/tex]
or, [tex]A = A_{0} * (1/2)^{\frac{36}{14} }\\A = A_{0} * (0.1682)\\[/tex]
16.82 % of the original drug dose remains in 36 hours
Hence, 16.82 % of the original drug dose remains in 36 hours
The second condition, time duration (t) = 72 hours
Then, the half-life of the substance can be calculated by:
[tex]A = A_{0} * (1/2)^{\frac{t}{h} }[/tex]
[tex]A = A_{0} * (1/2)^{\frac{72}{14} }\\A = A_{0} * (0.0283)\\[/tex]
2.83 % of the original drug dose remains in 72 hours
Hence, 2.83 % of the original drug dose remains in 72 hours
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Does the graph below represent a function
A. Yes
B. No
C. Sometimes
D. Not enough information
Answers
Answer:
Step-by-step explanation:
Yes, it is a function.
The reason for this is because it passes what is called the Vertical Line Test, notice how if you draw a completely straight line down, it will only make contact with the graph one time. It is hard to tell, but even though it looks like the graph stops at x=±3, the graph is actually approaching the values ever so slightly, therefore maintaining the conditions for the vertical line test.
The answer is A. Yes.
Yes the graph represents a function
5/6 over -2/3 minus 1.25 over 1/4 write your answer in simplest form.....please help
Answers
Answer: -1.5625
Step-by-step explanation:
5/6/-2/3 - 1.25/1/4 = -25/16 = -1 9/16 = -1.5625
what property is illustrated below
-5x + 2 =2 -5x
Answers
Answer:
distributive property
selling price of car if rs 50,000 , profit is 10% and cost price of car will be ?
Answers
Answer:
Rs 45,000
Step-by-step explanation:
The profit is the difference between the selling price and the cost price of the car. In this case, the profit is 10% of the selling price, or 10% * Rs 50,000 = Rs 5,000.
Therefore, the cost price of the car is the selling price minus the profit, or Rs 50,000 - Rs 5,000 = Rs 45,000. This is the amount that the seller paid for the car, before adding the profit.
A diver starts out at 342 feet below the surface (or -342 feet). She then swims upward 224 feet. Use a signed number to represent the diver's current depth.
Answers
Answer:
-118 feet
Step-by-step explanation:
[tex]-342+224=-118[/tex]
simplify the expression -3(x + 9) by either combining like terms of distributive property
Answers
Answer:
-3x+-27
-3 multiplied by x=-3x
-3x9=-27
CAN SOMEONE HELP WITH THIS QUESTION?✨
Answers
The new equation of graph will be-
y = 5ˣ - 4y = 5ˣ⁻⁵y = 5⁻ˣExplain the term translation?Each point in such a figure is moved the same distances in same direction using a kind of transformation known as translation.A reflection is the shape's mirror image. A line, called the line of reflection, will allow an image to reflect through it. Each point in an image is thought to reflect other figure when they are all equally spaced apart from one another.For the stated conditions.
The equation of the graph is given as-
y = 5ˣ
Part a: f(x) is shifted 4 units downward,
y = 5ˣ - 4, is the new image location.
Part b: f(x) is shifted 5 units left,
, y = 5ˣ⁻⁵, change in the y axis with negative sign.
Part c: f(x) is reflected about the y axis.
y = 5⁻ˣ, x coordinates will change, keeping the y axis same.
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The radius of a circular play ground is 77 m. Calculate the distance covered by a runner in 5 complete rounds around the ground.
Answers
Answer:
Step-by-step explanation:
77*5=385
A rental car agency charges $160 per week plus $0.25 per mile to
rent a car. How many miles can you travel in one week for $335?
Answers
The number of miles travelled by the family in one week is 700 miles
How to determine the number of miles travelledFrom the question, we have the following parameters that can be used in our computation:
Charges per week = $160
Charges per mile = $0.25
Total charges = $335
The above parameters mean that
Total charges = Charges per week + Charges per mile x Number of miles
Substitute the known values in the above equation, so, we have the following representation
160 + 0.25 * Number of miles = 335
This gives
0.25 * Number of miles = 175
Multiply both sides by 4
Number of miles = 700
Hence, the number of miles is 700
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Answers
Answer:
Step-by-step explanation: