Mark wants to round to the nearest hundred to estimate the sum of 271 and 582.
He wrote 270 + 580 = 850.

Part A
What mistake did Mark make?
A.
00:00



Mark should have rounded 271 to 250 and rounded 582 to 550: 250 + 550 = 800.
B.
00:00



Mark should have rounded 271 to 250 and rounded 582 to 600: 250 + 600 = 850.
C.
00:00



Mark should have rounded 271 to 300 and rounded 582 to 500: 300 + 500 = 800.
D.
00:00



Mark should have rounded 271 to 300 and rounded 582 to 600: 300 + 600 = 900.
00:00

Part B
What is the sum of 271 and 582 rounded to the nearest hundred?
A. 300
B. 850
C. 900
D. 1,000

Answers

Answer 1

Answer:

Step-by-step explanation:

Part A:

Mark did not round to the nearest hundreds, he rounded to the nearest tens.

Option A (Incorrect):

271 and 582 are normally not rounded down, unless we are using limits coming from the left and a unique equation.

Option B (Incorrect):

271 as the same problem as option A, but 582 rounding to 600 is correct. It doesn't make sense to round both numbers differently, unless stated.

Option C (Incorrect):

271 rounding to 300 is correct, but 582 is not normally rounded down to 500 unless we are using limits coming from the left and a unique equation. Unless stated, don't round both numbers differently.

Option D (Correct):

271 rounded to 300 and 582 rounded to 600 looks correct for rounding to the hundreds.

Part B:

There are two ways to solve this question:

One way:

271 + 582 = 853

Round 853 to the nearest hundred for 900

(Note: Round 853 to the nearest tens for 850.)

Second way:

271 + 582

Round Numbers:

300 + 600

= 900


Related Questions

which graph represents a function?

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Answer:

D

Step-by-step explanation:

Its going in a direction that might go somewhere so I think D hope this helps

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Answer:

1) 12/18

2) 15/25

3) 32/40

4) 6/14

5)  8/15

6) 16/24

7. 12/27

Step-by-step explanation:

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the answer is 4 have a nice day

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C

Step-by-step explanation:

Answer:

Transaction across y

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That's your answer

Is the following equation Linear, Non-linear, or neither
5x +2(x3 - 9) = 132 + 8x?

Answers

Answer:

x = 50

Step-by-step explanation:

5x + 2(3x - 9) = 132 + 8x

5x + 6x - 18 = 132 + 8x

11x - 18 = 132 + 8x

11x - 18 = 8x + 132

11x - 18 + 18 = 8x + 132 + 18

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11x - 8x = 8x - 8x + 150

3x = 150

3x ÷ 3 = 150 ÷ 3

x = 50

x + 318 = 718 x = x – 212 = 634 x =
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did you try photomath

75% of the tickets sold at a school carnival were early-admission tickets. If the school sold 72 tickets in all, how many early-admission tickets did it sell?

Answers

Answer:

66 is the answer, hope that’s helped!

Mark is putting a round fountain in his backyard. He decides to place bricks around the edge of the fountain. If the radius of the fountain is 1.5 feet, what is the length of the brick edge?

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Answer: 9.42ft :)

Step-by-step explanation: Your Welcome!!!

sin 75°(cot 75° + cot 60°)

help me simplify this​

Answers

(square root of 6)/ 3

Max picked out an old Star Wars puzzle to put together. Out of the 75 pieces, he was missing 3.
What percentage of the pieces was he missing?

After a cab ride, Jacob’s total fare was $45. He paid the cab driver a 15% tip. How much was the tip?

Joey’s mom baked (30) cookies. That night, there were 21 cookies left. What percentage of the cookies were eaten?

Lin’s family has completed 70% of a trip. They have traveled 35 miles. How far is the trip? (If you get stuck, draw a tape diagram)


Marco bought a doll for his little sister. The price on the tag was $25, but it was on sale for 80% off. How much did Marco pay for the doll?


SHOW WORK ONE ALL PLZ HELP

Answers

Answer:

Step-by-step explanation:

100(3/75)=4%

$45(15/100)=$6.75

100(30-21)/30=30%

(70/100)t=35

t=3500/70

t=50 miles

c=$25(1-80/100)

c=$25(20/100)

c=$5

mii need halp
im givin brainliest dis time

Answers

Answer:

x = 35 , y = 72.5

Step-by-step explanation:

(a)

x and 35° are vertical angles and are congruent, then

x = 35

(b)

y. y and 35 lie on a straight line and sum to 180°, that is

y + y + 35 = 180

2y + 35 = 180 ( subtract 35 from both sides )

2y = 145 ( divide both sides by 2 )

y = 72.5

Answer:

y = 72.5 degrees

X = 35 degrees

Step-by-step explanation: A straight line is 180 degrees. The line with the two y degrees and the 35 degrees is a straight line, which is = 180 degrees. Because the y degrees are the same variable (y) they are equal degrees. All you need to do to find y is 180-35 =145. Divide that by 2 to find both y’s. 145 / 2 = 72.5. You can do the same for x, or realize that x and 35 are alternate interior angles, meaning they are the same measure: 35 degrees.

en una granja sembraron 20 parcelas de locotes, con 40 plantas en cada una ¿Cuántas plantas de locotes se tienes?

Answers

Answer:

800

Step-by-step explanation:

20 x 40 = 800

Help pllssssss will give 10 points!!

Answers

Answer:

Its b

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex](a^b)^c=a^{bc}\\ \\ 5^3(c^5)^3(d^3)^3\\ \\ 125c^{15}d^9[/tex]

Identify the volume of the composite figure. Round to the nearest tenth.

Answers

Answer:

474.5 ft³

Step-by-step explanation:

volume of cube = l³ = 9³ = 729

volume of the cylinder = πr²h = π × 3² × 9 = 81π

subtracting,

729-81π = 474.5309951 ft³

Answer:

474.5 ft³

Step-by-step explanation:

List 2 possible solutions for the inequality x < 9.

Answers

Answer: Any number less than 9.

Step-by-step explanation: The inequality is x is less than 9, that’s what < means, so you can say x is 8, 7, 6, 6.9, etc, x is anything less than 9.

Write an expression using variables and/or numbers for the statement. Omaya picked x amount of apples, took a break, and then picked v more. Write the expression that models the total number of apples Omaya picked.

Answers

Answer:

x+v

Step-by-step explanation:

brainlest?

Someone help mee 18/3(5-2)

Answers

Answer:

18

Step-by-step explanation:

Hope this helps

Answer: 18

Step-by-step explanation: 18 would be your answer because if you do 5-2 you would get 3 and then you would do 18/3 which is 6 and 6 times 3 equals 18. If you need help when doing this use PEMDAS which stands for parentheses, exponents, multiplication, division, addition, and subtraction.

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Answers

105 squared meters is the answer.

George is reading a book.On Monday he read 1/3 of the book. On Tuesday he reads three-tenths of the remaining pages. He has 35 pages left to read. How many pages are in the book

Answers

Answer:

Step-by-step explanation:

m=p/3

t=(3/10)(1-1/3)

t=(3/10)(2/3)=p/5

p-p/3-p/5=35

(15p-5p-3p)/15=35

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Answers

Answer:

D

Step-by-step explanation:

Find the area (in square feet) of a trapezoid with height h and bases b_1 and b_2. h = 6 in b_1 = 9 in b_2 = 12 in The area is _ square feet

Answers

Answer:

Area of the trapezoid = 90 square feet

Step-by-step explanation:

Area of a trapezoid with bases b₁, b₂ and height h is given by the formula,

Area of a trapezoid = [tex]\frac{1}{2}(b_1+b_2)h[/tex]

By substituting the given values in the formula,

                   Area = [tex]\frac{1}{2}(6+9)12[/tex]

                            = [tex]\frac{180}{2}[/tex]

                            = 90 square feet

Therefore, area of the trapezoid = 90 square feet

Sasha's mom is ordering food trays for Sasha's elementary school graduation party. Banquet Brothers sells a tray with 48 servings for $60.00. Cookin' Catering sells a tray with 30 servings of pasta for $72.00. Which company has the better deal?

Answers

Answer:

Banquet brothers

Step-by-step explanation:

banquet brothers 48 servings cost 60 dollars making it

$1.25 per serving

cookin' catering 30 servings cost $72.00 making it

$2.40 per serving

$1.25 < 2.40

thus banquet brothers is the answer.

PLEASE MARK BRAINLIEST AND GIVE 5 STARS.

Which statement is true about a trend line?

Answers

Answer:

Its b

Step-by-step explanation:

I did the test...

The correct statement about a trend line is: A trend line and a regression line are equivalent terms.

A trend line and a regression line are NOT equivalent terms. They refer to different concepts in data analysis.

1. Trend Line:

A trend line, also known as a line of best fit, is used to represent the general direction or pattern of a dataset. It is a straight line that fits through the data points in a scatter plot to show the overall trend in the data. The primary purpose of a trend line is to identify the underlying pattern or tendency of the data points. Trend lines can be linear or nonlinear, depending on the nature of the data.

In simple terms, a trend line helps us visualize whether the data is increasing, decreasing, or following a specific pattern over time or across a range of values.

2. Regression Line:

A regression line is a specific type of trend line used in linear regression analysis. Linear regression is a statistical method that examines the relationship between two or more variables to predict an outcome. It finds the "best-fit" straight line that minimizes the sum of the squared differences between the actual data points and the predicted values.

The regression line represents the relationship between the independent variable(s) (usually denoted as 'X') and the dependent variable (usually denoted as 'Y'). It provides an equation of the form Y = a + bX, where 'a' is the y-intercept and 'b' is the slope of the line. The regression line serves as a predictive model to estimate the value of the dependent variable based on the values of the independent variable(s).

- A trend line represents the general direction or pattern of a dataset.

- A regression line is a specific type of trend line used in linear regression to predict outcomes based on the relationship between variables.

Therefore, the correct statement is: A trend line and a regression line are NOT equivalent terms.

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https://brainly.com/question/29249936

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Answers

Answer:

4,3 8,2

Step-by-step explanation:

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Answers

Answer:

9 square feet

Step-by-step explanation:

A = bh / 2

b = 3

h = 6

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Answer: I wanna say its either 2,304 or 18 square feet. I could be wrong but if I am I'm Sorry! Have A Nice Day!! <3

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simplify your answer as much as possible

Answers

Answer:

v = 9 , − 9

Step-by-step explanation:

Take the root of both sides and solve.

Answer:

if you're solving by the square root I think the answer would be 9 or -9 it's either one of those

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Answers

Answer:

6⋅10^ −2 is 3* 10^6 greater than 2 ⋅ 10^− 8

Step-by-step explanation:

Given the following expression

6⋅10^ −2 and 2 ⋅ 10^− 8

Taking their ratio

k = 6⋅10^ −2/2 ⋅ 10^− 8

k = 6/2 * 10^-2/10^-8

k = 3 * 10^{-2+8}

k = 3* 10^6

Hence 6⋅10^ −2 is 3* 10^6 greater than 2 ⋅ 10^− 8

Cara has one bag of toys that weighs 2 pounds and another that weighs 48
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Answers

Answer:

80 ounces

Step-by-step explanation:

one pound is equal to 16 ounces.

If we convert both pounds to ounces, we get 32. Simply add 32 to 28 to get your answer.

What is the answer of R4 × 38 ​

Answers

Answer:

38r^4 ( I hope this was helpful) >;D

help pls ok fast pls

Answers

Answer:

I would say the last one. If its wrong then its definitely option 9y/3

Sorry if its wrong :(

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