The estimated result of 219 ÷ 15, by first rounding each number and then dividing, we get the result as 11.
We are given the expression:
219 ÷ 15
We need to estimate the result by first rounding off the digits to nearest tens and then performing division to get the answer.
So, we will first do the round off.
219 will be rounded off to 220
15 will be rounded off to 20
So, the expression will become:
220 ÷ 20
So, now performing the division, we get that:
= 11
Therefore, the estimated result of 219 ÷ 15, by first rounding each number and then dividing, we get the result as 11.
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HELP PLSS
The graph shows the corruption ratings for the world's least corrupt and most corrupt countries. The ratings are on a scale from 0 to 10, where higher scores represent less corruption.
a. Write a set of four ordered pairs in which each of the least corrupt countries corresponds to a corruption rating. Each ordered pair should be in the form (country, corruption rating).
The ordered pairs in which each of the least corrupt countries corresponds to a corruption rating will be {(A,9.7),(B,9.6),(C,9.6),(D,9.1)}.
What is an ordered pair?It should be noted that an ordered pair is the pair of two numbers or variables that are written inside brackets and are separated by a comma.
An example, (1, 2) is an ordered pair. It should be noted it can represent a point. In this case, the pair should be in the form of:
(Country, corruption rating)
(A, 9.7)
(B, 9.6)
(C, 9.6)
(D, 9.1)
Therefore, this will be {(A,9.7),(B,9.6),(C,9.6),(D,9.1)}.
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Estimate approximately how many people were born on a Sunday. Give a step-by-step process for your estimate and show all calculations. State any assumptions clearly.
Answer:
Step-by-step explanation:
World Population = 7,750,000,000
7,750,000,000 / 7 (for amount of days in a week) = 1,100,00,000 people born on Sunday (roughly)
the 3rd term of a linear sequence is 17. the 45th term is 269. determine the formula for the nth term.
Step-by-step explanation:
a linear or arithmetic sequence has a start value as first term, and then every following term is created by adding the same constant to the previous term.
a1 = a
a2 = a1 + c = a + c
a3 = a2 + c = a + c + c = a + 2c
a4 = a3 + c = a + c + c + c = a + 3c
...
as we can easily see
an = an-1 + c = a + (n-1)c
in our case
a3 = 17 = a + 2c
a = 17 - 2c
a45 = 269 = a + 44c = 17 - 2c + 44c = 17 + 42c
252 = 42c
c = 6
a = 17 - 2c = 17 - 2×6 = 17 - 12 = 5
so,
an = 5 + (n-1)×6
Can someone please help me? I’m confused. I’ll give brainliest :)
pleaseee helpppp meeeee this is due sooonnnn
Maria bought 5 tickets for $20 each. Each ticket had a $2 fee. Write an expression that shows how much Maria paid for the tickets.
The algebraic expression which shows how much Maria paid for the tickets including the additional fee is y = 20(5) + 2(5)
Algebraic expression to show how much Maria paid for the ticketsNumber of tickets Maria bought = 5Cost of each tickets = $20Additional fee per tickets = $2let
Total amount Maria paid for the tickets = yTotal amount Maria paid for the tickets = Cost of each tickets(Number of tickets Maria bought) + Additional fee per tickets(Number of tickets Maria bought)
y = 20(5) + 2(5)
y = 100 + 10
y = $110
Therefore, the algebraic expression which shows how much Maria paid for the tickets including the additional fee is y = 20(5) + 2(5)
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Line A: y = 1/2x + 2
Line B: y = -1/2x + 7
Line C: y = 2x + 4
Line D: y = 1/2x + 5/4
Which lines are perpendicular?
The perimeter of an equilateral triangle is 15 inches more than the perimeter of a square, and the side of the triangle is 7 inches longer than the side of the square.
The length of the equilateral triangle side is 13 inches while that of the square is 6 inches.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let x represent the side of the equilateral triangle and y represent the side of the square. Hence:
For the perimeter:
3x = 4y + 15
3x - 4y = 15 (1)
Also:
x = y + 7
x - y = 7 (2)
From the equations:
y = 6, x = 13
The length of the equilateral triangle side is 13 inches while that of the square is 6 inches.
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Help pls this is kinda urgent thank you
The coordinates of the midpoints of the segment with the endpoints are (-1, 0.5)
How to determine the coordinates of the midpoints of the segment with the endpoints?The endpoints of the segment are given as
J = (-6, 3)
K = (4, -2)
The coordinates of the midpoints of the segment with the endpoints are calculated as
Midpoint = 1/2 * (J + K)
So, we have
Midpoint = 1/2 * (-6 + 4, 3 - 2)
Evaluate the sum and the difference
So, we have
Midpoint = 1/2 * (-2, 1)
Evaluate the product
So, we have
Midpoint = (-1, 0.5)
Hence, the coordinates of the midpoints of the segment with the endpoints are (-1, 0.5)
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Jane is a cleaner the table shows information about the time it will take to clean each four rooms in the house. Jane wants to clean all four rooms in one day she will have breaks for a total time of 45 minutes. Jane is going to start at 7am what time will she finish?
Answer:
Dat is
45/7
6.43
6.43+4+4
14.43
Answer:
b c
Step-by-step explanation:
have a great day
A certain star is 3.9 x 10^2 light years from the Earth. One light year is about 5.9 x 10^12 miles. How far from the earth (in miles) is the star?
Answer: The star is 2 quadrillion( 1 followed by 15 zeroes) and 301 trillion( 1 followed by 12 zeroes) miles away from Earth. To shorten this into scientific notation(the format used to write large numbers) is: 2.301 x 10^15.
Step-by-step explanation: First, find the exact value of the units of measurement, which in this case is light years. To do so, your best choice would be to separate the equation given for light years. (Note: the line through the middle is just to separate two very similar series of steps.)
1. 5.9 x 10^12 into 5.9 x (10^12)
2. 10^12 = 1,000,000,000,000. 10^12 is the same as adding 11 zeroes since it is multiplying by tens, not 12 zeroes since there is already a zero on the ten. This number is one-trillion(we will shorten this number to 1T).
3. 5.9 x 1T = 5.9 T. Don't get nervous of the big numbers, this is the same as doing 5.9 x 1 and then adding a name afterwards. Now that we have our number, we must remember the question is asking for miles, so keep in mind this large number is the miles.
4. 5.9T --> 5.9 | T Take off the T from 5.9T for now to make this problem a little simpler for this next part.(Note: the | is a separator)
------------------------------------------------------------------------------------------------------------- 5. 3.9 x 10^2 into 3.9 x (10^2)
6. 10^2 = 100. 10^2 is the same as multiplying adding one zero to the ten. This number is one-hundred.
7. 3.9 x 100 = 390. Please remember that this step is to find the number of light years away from the Earth.
8. 390 x 5.9 = 2301. This is the number of lightyears times the number of miles without the zeroes. The next step is to add the zeroes which brings the number into trillions.
9. 2301 | T --> 2301T. Next is to simplify this number, since every zero after 3 makes the number into a different name, this number is now has 15 zeroes. This number(one-quadrillion) will be shortened to Qu.
10-ish. 2301T = 2.301Qu. This is the name of a number with 15-17 zeroes.
10. 2.301Qu = 2.301 x 10^15. This is just turning the number into scientific notation.
Done!
6u+18+9u=-12 simplify
Answer:
u = -2
Step-by-step explanation:
Group
[tex]6u+9u+18=-12[/tex]
Add similar elements in the equation
[tex]15u+18=-12[/tex]
Subtract 18 from all sides
[tex]15u+18-18=-12-18[/tex]
Simplify this
[tex]15u=-30[/tex]
Divide all sides by 15
[tex]\frac{15u}{15}=\frac{-30}{15}[/tex]
Divide 15 by 15, removing u
[tex]\frac{15}{15} = u[/tex]
Transform [tex]\frac{-30}{15}[/tex] by using the fraction rule.
[tex]-\frac{30}{15}[/tex]
Divide 30 by 15.
[tex]\frac{30}{15} = 2[/tex]
Thus,
u = -2
(-2 3/5)(3)(-0.5) what does this equal?
Answer:
3.9
Step-by-step explanation:
im not sure :<
Answer:
9/25 = 0.36 = nine twenty-fiths
Step-by-step explanation:
Carla is riding her tricycle in a race. We only know that 20 seconds after the race began, she was 55 meters from the starting line, and 30 seconds after the race began, she was 85 meters from the starting line. Find the equation of the line describing Carla’s motion during the race, where y represents her distance from the starting line in meters, and x represents the time since the race began in seconds.
The equation of a line describing Carla's motion during the race is y = 3x - 5.
What is slope?The slope is defined as the rate of change of the y-axis with respect to the x-axis.
As we are representing y as distance in meters and x as time in seconds we can form two co-ordinates for the distance Carla covered, They are
(20,55) and (30,85).
Now to form an equation of a line we have to first determine the slope(m) and y-intercept (b).
We know slope(m) = (y₂-y₁)/(x₂-x₁).
∴ Slope(m) = (85 - 55)/(30 -20).
= 30/10.
= 3.
Now, The equation of this line can be written as slope intercept form as y = mx + b.
55 = 3(20) + b.
b = -5.
So, y = 3x - 5 is our required equation of this situation represented by a line.
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need help with question 2 pleasee
Answer:
A: 24
B: 3
C: -1
D: 12
Step-by-step explanation:
Grandparents want to make a gift of $100,000 for their grandchild’s 20th birthday. How much would have to be invested on the day of their grandchild’s birth if their investment could earn: (a) 10.5% compounded continuously? (b) 11% compounded continuously? (c) Describe the effect that this slight change in the interest rate makes over the 20 years of this investment
Answer:
20
Step-by-step explanation:
20 yenara they hain aahe aahe
my answer is 20 i guess........
14.0.02943
Scientific notation?
The scientific notation of the number 140.02943 is 1.4002943 × 10⁻².
What is termed as the scientific notation?Scientific notation is a technique for expressing numbers that are too large or small to be written in basic decimal form. In some contexts, scientific notation is also recognised as standard form, scientific form, or standard index form.The primary reason for the importance of scientific notation is that it enables us to transform very large or extremely small numbers into much manageable sizes. It is much simpler to work with these numbers when they are written in scientific notation. Scientific notation is also crucial because it ensures that calculations involving large numbers remain accurate, as it is often easy to lose track of successfully counting extremely large numbers. For instance, someone will most likely be able to work with 10¹⁰ rather than 10,000,000,000.The given number is;
140.02943
Shift the 2 decimal to the left of the decimal; because of this, the resultant number will get multiplied by 10⁻².
= 1.4002943 × 10⁻²
Thus, the number in the scientific notations will be written as; 1.4002943 × 10⁻².
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The correct question is-
Write scientific notation of -
140.02943
On a sunny day, you and your friend were taking a long walk. You got tired and stopped near a telephone pole for a little rest, but your nervous
friend couldn't stand still. He paced out your shadow and discovered it was 5 meters long even though you are really only 1.5 meters tall. He
paced the long shadow of the telephone pole and found that it was 35 meters long. How high is the telephone pole in meters? Enter your answer
with one digit to the right of the decimal point.
The telephone pole will stands 10.5 meters tall.
Given shadow of you = 5 meters
The true height is 1.5 meters.
We must determine the telephone pole's height because its lengthy shadow is 35 meters long.
Assume that x is the height of the telephone pole..
Now we can write this as
height of shadow/ actual height
5 / 1.5 = 35 / x
By cross multiplication we get
5 * x = 35 * 1.5
We get it by dividing '5' by both sides
x = 35 * 1.5 / 5
x = 10.5 meters
Therefore ,The telephone pole is 10.5 meters tall.
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HELP PLEASE!! (9,-4);slope=-2/3 write the equation of the line
Given the point and slope, the equation of the line is in slope-intercept form is y = (-2/3)x + 2
What is the equation of line with the given point and slope?The formula for equation of line is expressed as;
y = mx + b
Where m is slope and b is y-intercept.
Given the data in the question;
Point ( 9, -4 )
x = 9y = -4Slope m = -2/3Since already have the slope, we determine the y-intercept b by substituting the given values into the equation of line formula.
y = mx + b
-4 = (-2/3)9 + b
Solve for b
-4 = -18/3 + b
-4 = -6 + b
b = -4 + 6
b = 2
Now that the values of slope m and y-intercept b is known, plug these into y = mx + b to determine the equation of the line.
y = mx + b
y = (-2/3)x + 2
Given the point and slope, the equation of the line is in slope-intercept form is y = (-2/3)x + 2
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Determine which equation is false based on the solution set.
S:{5}
A: 6 = 2y − 4
B: 4(b + 5) = 40
C: one fifth times x plus 16 equals 17
D: −32 = 2(3p − 6)
Answer:
d) -32 = 2(3p - 6) is false.
Step-by-step explanation:
A) 6 = 2y - 4
→ 6 = 2(5) - 4
→ 6 = 10 - 4
→ [ 6 = 6 ]
So, the equation is true.
B) 4(b + 5) = 40
→ 4(5 + 5) = 40
→ 4(10) = 40
→ [ 40 = 40 ]
So, the equation is true.
C) (1/5)x + 16 = 17
→ (5/5) + 16 = 17
→ 1 + 16 = 17
→ [ 17 = 17 ]
So, the equation is true.
D) -32 = 2(3p - 6)
→ -32 = 2(15 - 6)
→ -32 = 2 × 9
→ [ -32 ≠ 18 ]
So, the equation is false.
Rosa works 30 hours per week making $15.75 per hour. After her paycheck has 28% deducted for Taxes (federal, state, and social security), Rosa takes 10% of her take home pay and puts it into a savings account. How much money does she then have available from her paycheck to spend each week?
what are the nouns in a large family once lived across the street
The nouns in the sentence is "family" and "street"
Nouns are the naming word, it is used to name anything in this world. we use noun to refer person, place and things. A noun is a word that generally functions as the name of a specific object or set of objects, such as living creatures, places, actions, qualities, states of existence, or ideas
In the given sentence " A large family once lived across the street"
the nouns are " family" and "street"
Final answer, family and street are the nouns in the given sentence.
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7. Using the test of divisibility rule, determine which of the following numbers are divisible by 11.
(a) 1001935
(b) 154451
(c) 4313101
(d) 213596
Please Explain in paper
The number that is divisible by 11 is 154451
Which of the numbers are divisible by 11?The divisor is given as
Divisor = 11
Using the test of divisibility rule, numbers are divisible by 11 are palindrome numbers
This means that the numbers remain the same when reversed
From the list of options, 154451 is a palindrome
Hence, the number that is divisible by 11 is 154451
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At a dogs shelter a 24 pound bag of dog food will feed 36 dogs a day how many dogs would you expect to feed with a 16 pound bag of dog food
Answer:
24 dogs
Step-by-step explanation:
36 divided by 24= 1.5
1.5 times 16=24
so 24 dogs :)
Pls help only one question :( im stuck!
Answer:
-√26, 5.15, 5.2, 16/3
Step-by-step explanation:
-√26 = -5.09
16/3 = 5.33
Austin has two magnets. The shaded parts of the magnets represent the poles.
What will happen if she brings the dark side of magnet P closer to the dark side of magnet Q?
A They will repel each other.They will repel each other.
B Poles of the magnets will change.Poles of the magnets will change.
C Both the magnets will break.Both the magnets will break.
D They will attract each other.
Answer:
D They will attract each other
Tina feeds her dog pound of dog food per day. If she
buys a bag containing 9 pounds of dog food, how many
days will it last?
Answer:
If Tina buys a bag containing 9 pounds of dog food, it will last for 9 days.
Step-by-step explanation:
Give Brainliest if I helped!
Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.55 and a standard deviation of 0.43. Using the empirical rule, what percentage of the students have grade point averages that are between 2.12 and 2.98 ?
Using the Empirical Rule, 68% of the students have grade point averages that are between 2.12 and 2.98.
What does the Empirical Rule state?It states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.Approximately 95% of the measures are within 2 standard deviations of the mean.Approximately 99.7% of the measures are within 3 standard deviations of the mean.For this problem, we have that:
2.55 - 0.43 = 2.12.2.55 + 0.43 = 2.98.Hence 68% of the students have grade point averages that are between 2.12 and 2.98.
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Which expressions are equivalent to -9? Select all that are correct
The expressions that are equivalent to -9 are -(9) and -|9|
What are rational expressions?Rational expressions are expressions that are represented by the quotient of two polynomials or radicals. This means that, a rational expression is represented by a fraction whose numerator and denominator are polynomials or radicals
How to determine the expression?The expression is given as
-9
According to the identity law of algebra, we have the following equation
-x = -(x)
This means that
-9 = -(9)
Also, we have
-9 = -|9|
Hence, the expressions that are equivalent to -9 are -(9) and -|9|
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what is the least whole number that rounds to 230000 when rounded to the nearest ten thousand?
The least whole number that can be rounded to 230,000 is 225,000.
What is the least whole number?The ten thousand number (10,000) is usually the fifth digit in a number when counting from the right to the left. For example, in 132,456, 3 is the ten thousand number.
To round off to the nearest ten thousand, if the thousand digit is equal to or greater than 5 (i.e. 5,6, 7, 8, 9), 1 is added to the ten thousand digit and other numbers less than the ten thousand digit becomes 0. For example, when 234,612 is rounded to the nearest ten thousand, the number becomes 235,000.
If the thousand digit is less than 5 (i.e. 0, 1, 2, 3, 4), there is no change in the ten thousand digit other numbers less than the ten thousand digit becomes 0. For example, when 234,412 is rounded to the nearest ten thousand, the number becomes 234,000.
The numbers that can be rounded off to 230,000 are: 225,000, 226,000, 227,000, 228,000, 229,000, 230,000, 231,000, 232,000, 233,000, 234,000
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