Which is the best estimate of 28 × 0 . 64 28×0.64?

A. 10
B. 15
C. 21
D. 28

Answers

Answer 1

Answer:

It is 15.

Step-by-step explanation:

Because the actual answer between 28 x 0.64 is 17.92.

Answer 2
Final answer:

The closest estimate for the multiplication of 28 by 0.64, is approximately 19 and given the options, 15 would be the best choice.

Explanation:

The question is asking for the closest estimate for a multiplication problem, 28 times 0.64. We can convert the decimal 0.64 to a fraction which is approximately 2/3 (as 0.67 is closer to 0.64 than 0.5 - which would be 1/2). Hence, when multiplying 28 by 2/3, we get approximately 19.

Looking at the options given, 19 is not there. So, we select the nearest option to 19 which, in this case, it would be option B. 15.

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Related Questions

HELP!

Simplify the following expression: (−1)(−7)(4) (1 point)


12

28

−12

−28

Answers

-1 times -7 times 4 is 28

what is the structure of a poem

Answers

POETRY'S STRUCTURE AND FORM. POETRY'S RHYTHM. Rhythm gives a poem its sound, and there are many different ways that rhythm is used, and lots of elements in poetry that are related to rhythm. Stress / Accent A line of poetry is filled with syllables. When a syllable is given emphasis, it is called a stressed syllable.

Answer:

Poems are mostly written in lines and stanzas but it doesn't necessarily have a specific structure as such.

Explanation:

Structuring of a poem can be in multiple ways and there are no hard and fast rules. Though it is written in lines and stanzas, aside from that, there is no definite rule for writing a poem. Depending on the type of poem you are planning to write, it is required to try to follow the characteristics of the certain genre. For e.g, a sonnet is a fourteen line poem while an epic will deal with heroes, the free verse will be written in the author's own way, how long the lines will be or what shape it will take etc all depending on the writer. In short, the length of the line, the breaks, arrangement, rhythm or speed all depend on the content of the poem, and what it is about. Structure of a poem will all vary, depending on the type of poem written. So, to conclude, there is just no particular solution for writing a poem. It can be written in whatever way the writer wishes to, except that depending on the type of poetry s/he decides to write, it will have to follow the corresponding genre of that poetry.

Hexagon ABCDEF has has vertices A(-2,4), B(0,4), C(2,1), D(5,1), E(5,-2), F(-2,-2). Sketch the figure on the coordinate plane. What is the area of the hexagon?

Answers

A regular hexagon is defined as a hexagon that is both equilateral and equiangular. It is bicentric, meaning that it is both cyclic (has a circumscribed circle) and tangential (has an inscribed circle). The common length of the sides equals the radius of the circumscribed circle, which equals {\displaystyle {\tfrac {2}{\sqrt {3}}}} {\displaystyle {\tfrac {2}{\sqrt {3}}}} times the apothem (radius of the inscribed circle). All internal angles are 120 degrees. A regular hexagon has 6 rotational symmetries (rotational symmetry of order six) and 6 reflection symmetries (six lines of symmetry

Answer:

The area of the hexagon is  30  square units.

Sketch of figure on the coordinate plane below.

Step-by-step explanation:

Separate the hexagon into simpler shapes: a triangle, and two rectangles.

Find the area of the simpler figures. Count units to find the dimensions.

The triangle with vertices at (0, 4), (2, 1), and (0, 1):

A =   1 /2

BH

A =   1 /2

(2)(3)

A = 3

The area of the triangle is 3 square units.

The rectangle with vertices at (0, 1), (5, 1), (5, −2), and (0, −2):

A = LW

A = 5 × 3

A = 15

The area of the rectangle is 15 square units.

The rectangle with vertices at (−2, 4), (0, 4), (0, −2), and (−2, −2):

A = LW

A = 6 × 2

A = 12

The area of the rectangle is 12 square units.

Find the area of the hexagon.

A = 3 + 15 + 12

A = 30

The area of the hexagon is 30 square units.

what part of the engine is shown at point "A" in the above figure

Answers

A. Four Bolt Main.

It has four bolts and matches the same example of what a 4 Bolt Block is on a vehicle.

Use the data set to answer the question. Correct value: 27 Data set: 19, 31, 22, 28, 24 Which best describes the data set?

Answers

Final answer:

The dataset shows moderate variability around a median of 24. The mean is 24.8, the mode is not available, and the range of the data is 12.

Explanation:

To describe the given data set: 19, 31, 22, 28, 24, we need to analyze several statistical measures including mean, median, mode, range, and possibly standard deviation.

First, let's calculate the mean which is the total sum of the data points divided by the number of points. Therefore, (19+31+22+28+24)/5 = 24.8

Next, the median is the middle term when the data is written in ascending order. In this case, 24 is the median as it is the middle value.

This data set has no repeating numbers hence there is no mode.

The range tells us the spread of the values, determined by subtracting the smallest value from the largest. Therefore, 31( largest) - 19(smallest) = 12.

Without further data, standard deviation is impractical to calculate. Based on the numbers we do have, this dataset appears to have somewhat moderate variability and a median value of 24.

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A flower bed is in the shape of triangle with one side twice the length of the shortest side, and the third side is 26 feet more than the length of the shortest side. Find the dimensions if the perimeter is 178 feet.

Answers

Represent the lengths of the three sides.  They are x, 2x and x+26.

Adding thse together gives us the perimeter, P:

P = x + 2x + x + 26 = 178 feet

Then 4x + 26 = 178;      4x = 152        and x = 38 feet

The side lengths are 38, 76 and 64 feet.

Check by adding these together.  The sum must be 178 feet.

Barbara has $70.00 in her pocket and a $20 gift card. Which purchase will she be able to make without having to use her credit card?

Answers

six puzzles for $11.99 each and a board game for $15.89

Barbara will be able to make any purchase that costs less than or equal to $90.00 without using her credit card.

Barbara has $70.00 in her pocket and a $20 gift card, so she has a total of $70.00 + $20.00 = $90.00 to spend.

Which purchase will she be able to make without having to use her credit card depends on the prices of the items she is considering buying. If the price of an item is less than or equal to $90.00, then Barbara will be able to purchase it without using her credit card.

Here are some examples of purchases that Barbara will be able to make without using her credit card:

A $60.00 shirt and a $30.00 pair of pants

A $75.00 meal at a restaurant

A $90.00 pair of shoes

Here are some examples of purchases that Barbara will not be able to make without using her credit card:

A $100.00 TV

A $200.00 laptop

A $300.00 phone

In general, Barbara will be able to make any purchase that costs less than or equal to $90.00 without using her credit card.

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Manny drove 45 miles in 0.75 hours. What was the average rate that he drove in miles per hour

Answers

Manny drove 70 Because if 0.75 is 45 add 25 for example u a quater and u got only 3 and they want for how many u have too add More 1 quater more that 25 Cents so then u get the 45 + 25 = 70 !!!

The planet mercury is roughly 2 over five the size of earth. Write down the fraction as a decimal

Answers

2/5 is the fraction and .4 is the decimal

Evaluate the expression 7x2y, when x = 4 and y = 2.

Answers

7*4*2*2 your answer is 112.

hope this helps!

The solution of the expression 7x2y is 112.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the expression is 7x2y and the values x = 4 and y = 2.

The expression will be solved as:-

E = 7x2y

E = ( 7 x 4 x 2 x 2)

E = 28 x 4

E = 112

Therefore, the solution will be 112.

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What is the value of x?
A.35
B.60
C.155
D.25

Answers

For this question, since there is 180 in a triangle, subtract 60+85 to get A.35

Answer: the answer is 35 degrees

Step-by-step explanation:

A television weighs 60 kilograms. How many grams does it weigh?

Answers

60 Kilograms equal 60000 Grams
Here is your answer:

60kl=60000grams

Just remember that every kl is 1000 grams.

Your answer is
=60,000



A 1.5 lb package of seedless grapes costs $3.81. Round to the nearest
hundredth of a dollar. Find the unit price

Answers

A unit price of an object is simply the ratio of the total price of the object over the total mass, hence:

unit price = total price / total mass

unit price = $3.81 / 1.5 lb

unit price = $2.54 per pound

 

Answer:

$2.54

Final answer:

The unit price of the seedless grapes is calculated by dividing the total cost ($3.81) by the weight (1.5 lb), resulting in a unit price of $2.54 per pound.

Explanation:

To find the unit price of seedless grapes, you divide the total cost of the package by the weight of the package. If 1.5 lb of grapes costs $3.81, you would calculate the unit price by doing the following:

Divide $3.81 (total cost) by 1.5 lb (total weight).

The unit price is $2.54 per pound ($3.81 ÷ 1.5 lb = $2.54).

The unit price is helpful for comparing costs of similar products and making informed shopping decisions. Unit prices are displayed in stores to assist consumers with these comparisons.

2(10.7r - 9.5) = 33.8 rounded to the nearest tenth

Answers

2(10.7r - 9.5) = 33.8

10.7r 
this means the number is times a variable.

10.7r - 9.5 = 1.2r

2 x 1.2r = 33.8, so we need to find the value of the variable for 1.2r

the variable that makes sense to me would be approx.14.085, so 1.2r x 2 = approximately 33.8 if you round 14.085 to the nearest tenth.

so I would say it is 14.1. hope I helped you :)
32 I think is rounded to the nearest tenth, because the answer is all ready in tenths, so no other way but to round up.

carlie spent $42 at the salon. Her mother loaned her the money carlie will pay her mother 15% of $42 each week until the loan is repaid. About how much will Carlie pay each week?

Answers

$42÷.15=2.80. .15 is the decimal of 15%. Hope this helps. She will pay $2.80 a week for 15 weeks.
She would have to end up paying 2.50

Find the value of the point on the number line.

is it
3/10
2/9
2/8
or
3/8
please help
thank you so so so much

Answers

2/8 is the correct answer.


For this question you need to calculate the fractions and understand the decimals or whole numbers (integers). When I was in middle school we always square rooted it, you can use your calculator if you like... but you can also divide the numerator by the denominator.. even though those are two different things, that's what my mathematics teacher taught us from a long time ago. That's my best advice, and then link it to the point. But you have to calculate each and everyone unless you know that fraction's decimal by heart.

Artesia found a sale on skates. She got 1/5 off the regular price of $34.50. What was the sale price of her skates?

Answers

The sale price is $27.60

Prime factor of 220 and the answer in index form

Answers

The prime factors of the given number 220 in index form are [tex]2^2 \times 5 \times 11[/tex]

       

The prime factors of a number are the factors that have only two factors, 1 and the number itself.

Index form is defined as that number represented as an exponential expression or as a single number raised to another number.

An algebraic expression or a number that divides another number without leaving any remainder and the quotient is a whole number is called a factor.

The prime factors of 220 in ascending order are,

[tex]220 = 2 \times 2 \times \ 5 \times 11[/tex]

The prime factors of 220 in index form can be written as:

[tex]220 = 2^2 \times 5 \times 11[/tex]

Thus, the prime factor of 220 in the index form is [tex]2^2 \times 5 \times 11[/tex].

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Number 40 i don't get

Answers

17 + 14 = 31

There are 31 summer sports.

31 - 17 = 14
this is a very easy question. There are 14 winter sports. And this is 17 less than summer sports. So what we would do to find the answer is add 17 to 14 which would equal 31. So the answer is 31. Let me know if you need any more help :D

The function f(x)=5x+4f(x)=5x+4 models the height of a tree, where x represents the years since the tree was planted for year 3 through year 10. What is the practical range of the function?
a.)all real numbers between 3 and 10 inclusive
b.)all integers
c.)all real numbers between 19 and 54 inclusive
d.)integers from 3 to 10 inclusive

Answers

"all real numbers between 3 and 10 inclusive" could not be the answer, because these are x-values (values of the independent variable).

"all real numbers between 19 and 54 inclusive" is the range.  Why?  Because in year 3, f(3) = height of tree = 5(3) + 4 = 19 feet.  

In year 10, f(10) = 5(10) + 4 = 54 feet. 

Answer:

The answer is all real numbers between 19 and 54 inclusive

Good Luck!

What is 100-30÷5 value 14

Answers

[tex] 100-30\div5[/tex]

 [tex]\text{Simplify 30 divided by 5 to 6}[/tex]

[tex]100-6 = 94 [/tex]

Can someone help me on 10-12?

Answers

If two lines have the same slope, they are parallel.
If the product of 2 slopes is -1, the lines are perpendicular.

10. The lines do not have the same slope, so they are not parallel.
3 * (-1) = -3. The product is not -1, so the lines are not perpendicular.
Answer: neither

11. 2/3 and -3/2 are not equal, so the lines are not parallel.
2/3 * (-3/2) = -6/6 = -1
The product of the slopes is -1, so the lines are perpendicular.
Answer: perpendicular

12.
Plot the points (2, 16) and (5, 40).
Draw a line though them.
Then you can use the slope formula to find the slope.

m = (y2 - y1)/(x2 - x1) = (40 - 16)/(5 - 2) = 24/3 = 8

yuna missed Five Points out of 100 points on her math test what decimal number represents the part of her math test that she answered correctly

Answers

The number that represents what she got correct is 0.95, because 100-5=95, and because that the number will be 0.95, if she had gotten all correct the number would have been a full 1

THE answer would be .95 because 100 - 5 = 95 or 95/100 = .95.


Evaluate 6j+23+kl−3, when j=3, k=7, and l=33. Enter your answer in the box.

Answers

6j+23+kl−3
= 6(3) + 23+ (7)(33) −3
= 18 + 23 + 231 - 3
= 269

it is 19. i just took the test.

How can I use patterns to describe relationships

Answers

add it and subtract it by a certain number

Which of the following expressions is equal to 5 - 2m?

7 - 2(m + 1)
7 - (2m - 5)
7 - 2(m - 2)

Answers

Alright, I'm pretty sure I can help.

Let's look at the first answer choice.

7 - 2 (m + 1)

Distribute -2 and add the remaining numbers to get the total for that answer choice.

7 - 2m - 2

Simplify. You get 5 - 2m.

Looks like we found the answer on the first choice!

The Final Answer is 7 - 2 (m + 1)



Your answer would be the first one 7 - 2(m+1)

Gabriela buys a basket of coconuts on sale for $22 before tax. The sales tax is 12% What is the total price Gabriela pays for the basket of coconuts?

Answers

First you need to make a multiplier:
1-(12/100) = 0.78

Then you multiply the price by 1.12 to get the final answer;
22 * 0.78 = 17.16

This means it cost $17.16 after the 12% sales tax.

Hope this helps! :)

davids math grades are 85 49 67 and 83 on 4 tests. what grade must he earn on the next test to have a mean of 75

Answers

He must earn a 91
85+49+67+83+91=375
375/5=75

sue has 7/8 of her book left to read. If she reads another 2/7 of the book, how much of the book will she have left?

Answers

First you have to make the fractions equal.
That gives you 49/56 and 16/56. 
Then you add them together and get 65/56.
So I guess she finishes the book. (not completly sure, werid)
Hope this helps
Let B = how much of the book she has left to read.

B = 7/8 - 2/7

B = (49 - 16)/56

B = 33/56

Sue has another 33/56 left of the book to read.

Define the term family therapy

Answers

family therapy, also referred to as couple and family therapy, marriage and family therapy, family systems therapy, and family counseling, is a branch of psychotherapy that works with families and couples in intimate relationships to nurture change and development. It tends to view change in terms of the systems of interaction between family members. It emphasizes family relationships as an important factor in psychological health.
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