Please help for brainliest

17.2

Step-by-step explanation:

x/86

20/100

cross multiply 86x20=1720

x time 100 is 100 x

isolate: devide by 100 on both sides

x=17.2

17.2 is 20% of 86

Answer:

17.2

Step-by-step explanation:

Answer:

Step-by-step explanation:To find the scale factor of an original and a scale drawing, set up a ratio of the original length and the length of the drawing. Then simplify the ratio. A scale factor may be expressed by the ratio or by a positive number.A scale factor expresses the relationship between two lengths. It can be expressed as a ratio or a positive number. Let's look at some examples. If the original image is 4 inches, and the scale drawing is 8 inches, we can say that the scale factor is 4:8, but we must simplify that ratio, making it 1:2. We can also write the scale factor as a number by dividing 8 by 4 for a scale factor of 2.

That example is pretty straightforward, but let's look at something a bit more complicated. Let's say we have an original image that is 4 inches and a scale drawing that is 9.5 inches, and we want to find the scale factor. We cannot write the ratio 4:9.5, because ratios do not allow decimals or fractions. We must simplify the ratio. This involves getting rid of the decimal. To do this, we multiply 9.5 by 2 and get 19. What we do to one element of the ratio, we must do to the other, so we multiply 4 by 2 for 8. Our ratio looks like this: 8:19. Because 19 is a prime number, we cannot simplify further. This scale factor of 8:19, then, tells us that for every 8 inches in the original, the scale drawing will have 19 inches. We can also express the scale factor as 2.375 (19 divided by 8).

We'll try one more example. We have an original image that is 1.25 inches and a scale drawing that is 4 inches. Again, we cannot write a ratio with decimals, so we can't leave our scale factor as 1.25:4. We must simplify. This time, we must get rid of the decimal by multiplying each side by 4, so we have 5:16. We cannot simplify this ratio any further, but we can express it by the number 3.2 (16 divided by 5).

Answer: I hope line D has a slope of 5/2

if its wrong[pls forgive me]

if its right, then pls mark as the brainliest

^_^

Answer:

the answer us A its went up 6

Math can help you if you ever wanna build a desk in the future;)

Maths can be used in the day-to-day shopping at home groceries and vegetables etc.

Numbers, formulae, and related structures, shapes, and the spaces in which they are contained, as well as quantities and their variations, are all covered in the field of mathematics.

An example of daily life is if you are going to the market to purchase fruits the cost of 1 kg of apple is 200rs but you want to buy 30 rs apple only. Then the amount in kg for the 30rs apple will be calculated by using maths.

200rs apple  = 1 kg

1 rs apple = 1 / 200 kg

30 rs apple = ( 1 x 30 ) / 200

30 rs apple = 0.15 kg or 150 grams

In this way, you will get the exact amount of apple for 30 rupees amount by using mathematics

Therefore, maths can be used in the day-to-day shopping at home groceries and vegetables, etc.

To know more about maths follow

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Answer: c

Step-by-step explanation:

I believe

Answer:

n=2

Step-by-step explanation:

Answer:

11.25

Step-by-step explanation:

if a cube has 6 equal sides, you want to multiply 5.25 by 6 to get the surface area for the entire cube.

Answer:

14b

Step-by-step explanation:

Here, we want to get the greatest common factor of the two terms

The greatest common factor can be obtained by finding the expression that factor the given expression

We have this as;

14b(2a + 3)

So the greatest common factor is 14b

Answer:

y = 4x

Step-by-step explanation:

formula is y=kx, where k is factor of proportionality

Looking at the graph where y and x meet...

2/0.5 = 4 so 2 = 4(0.5)

Therefore, 4 is k (constant)

4=4(1)

6=4(1.5)

10=4(2.5)

and so on...

Answer:

I think it is b and d .

Step-by-step explanation:

Answer:

Hello again! Both D and B are rectangles.

Step-by-step explanation:

You know that a rectangle has 4 sides like a quadrilateral but it is different. Both of the oppiosite sides are the same length. C would not be one because it is not connected therefore it is not a full shape. Because of  A´s even sides, A is not a rectangle. I hope this helps! :]

Sorry I messed up! :]

Answer:

[tex]\huge\boxed{\tt{x = 11 , y = 1}}[/tex]

Step-by-step explanation:

x + y = 12 -------------------------(1)

2x + 5y = 27 --------------------(2)

Multiply (1) by 2

2(x+y) = 12 * 2

2x + 2y = 24 --------------------(3)

Subtract (3) from (2)

2x + 5y - ( 2x + 2y ) = 27 - 24

2x + 5y - 2x - 2y = 3

5y - 2y = 3

3y = 3

Divide 3 to both sides

y = 1

Put y = 1 in (1)

x + 1 = 12

x = 12 - 1

x = 11

So,

x = 11 , y = 1

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

14 : 21 : 28

Step-by-step explanation:

2 + 3 + 4 = 9

63 ÷ 9 = 7

2 × 7 = 14

3 × 7 = 21

4 × 7 = 28

14 : 21 : 28

Answer:

[tex]3:5[/tex]

Step-by-step explanation:

[tex]We\ are\ given\ that:\\AB\ is\ a\ Line\ Segment\ that\ has\ Points\ A\ and\ B,\ that\ are\ it's\ two\ End-Points.\\Now,\\Point\ C\ is\ marked\ on\ AB\ that\ divides\ AB\ into\ AC\ and\ CB,\ whose\\ lengths\ are\ in\ a\ Ratio\ 1:2.\\\\Point\ E\ is\ marked\ on\ AB\ that\ divides\ AB\ into\ AE\ and\ EB,\ whose\\ lengths\ are\ in\ a\ Ratio\ 1:3.\\\\Point\ D\ is\ marked\ on\ AB\ that\ divides\ AB\ into\ AD\ and\ DB,\ whose\\ lengths\ are\ in\ a\ Ratio\ 1:4.\\\\[/tex]

[tex]Now,\\For\ Point\ C,\\Total\ no.\ of\ parts=1+2=3\\Length\ of\ AC=\frac{1}{3}x\\Length\ of\ CB=\frac{2}{3}x\\\\For\ Point\ E,\\Total\ no.\ of\ parts=1+3=4\\Length\ of\ AE=\frac{1}{4}x\\Length\ of\ EB=\frac{3}{4}x\\\\For\ Point\ D,\\Total\ no.\ of\ parts=1+4=5\\Length\ of\ AD=\frac{1}{5}x\\Length\ of\ DB=\frac{4}{5}x\\[/tex]

[tex]Now,\\Lets\ move\ onto\ some\ REAL\ calculations!!\\We\ firstly\ observe\ that,\\AD+DC=AC\\Hence,\\\frac{1}{5}x+DC=\frac{1}{3}x\\DC=\frac{1}{3}x-\frac{1}{5}x\\DC=\frac{5-3}{15}=\frac{2}{15}[/tex]

[tex]We\ secondly\ observe\ that,\\AD+DE=AE\\Hence,\\\frac{1}{5}x+DE=\frac{1}{4}x\\DE=\frac{1}{4}x-\frac{1}{5}x\\DE=\frac{5-4}{20}=\frac{1}{20}[/tex]

[tex]Now,\\We\ know\ that,\\DE+EC=DC\\Hence,\\\frac{1}{20}x+EC=\frac{2}{15}x \\EC=\frac{2}{15}x-\frac{1}{20}x\\EC=\frac{40-15}{300}x\\EC=\frac{25}{300}x=\frac{1}{12}x\\\\By\ comparing\ DE\ and\ EC,\\Length\ of\ DE=\frac{1}{20}x\\Length\ of\ EC=\frac{1}{12}x\\The\ ratio\ of\ Lengths\ of\ DE\ to\ Length\ of\ EC=\frac{1}{20}x:\frac{1}{12}x\\We\ know\ that,\\Ratio's\ are\ merely\ fractions\ represented\ by\ ':'.\\Hence,\\\frac{1}{20}x:\frac{1}{12}x\\=\frac{\frac{1}{20}x}{\frac{1}{12}x}\\[/tex]

[tex]=\frac{1}{20}*12\\=\frac{12}{20}=\frac{3}{5}=3:5[/tex]

Answer:

The percent error is 20%.

Step-by-step explanation:

The general formula is to subtract the actual value from the estimated value, take the absolute value of the difference, divide that answer by the actual value, then multiply it by 100.

So, 20 (estimated) minus 25 (actual) is -5. The absolute value of -5 would be 5, since absolute value is always positive. Divide 5 by the actual value, 25, and you get 0.2. Multiply 0.2 by 100 to get a percent value, and the answer will amount to 20%. Hope this helps.

Answer:

Total number of loaves of bread sold in [tex]4[/tex] hours is [tex]120[/tex] and [tex]40[/tex] loaves of bread will remain unsold.

Step-by-step explanation:

Given: A bakery produces [tex]2[/tex] batches of bread with [tex]80[/tex] loaves in each batch.

           It sold [tex]30[/tex] loafs each hour.

To find: How many loaves of bread were sold in [tex]4[/tex] hours? How many loaves of bread were left to sell?

Solution:

Total number of loaves of bread produced [tex]=2 \times 80=160[/tex].

Number of  loafs sold each each hour [tex]=30[/tex].

So, number of loafs sold in [tex]4[/tex] hours[tex]=4 \times 30=120[/tex].

Therefore, number of loaves of bread that were remain unsold [tex]=160-120=40[/tex]

Hence, total number of loaves of bread sold in [tex]4[/tex] hours is [tex]120[/tex] and [tex]40[/tex] loaves of bread will remain unsold.

Answer:

0%

Step-by-step explanation:

Step one:

given data

A contractor purchases 5 dozen pairs of padded work gloves for $71.40

the unit price will be

total number of gloves

5 pairs

unit cost per glove

=71.40/5

=$14.28 per glove

The estimated cost per pair is

$14.28 per pair

The error is

%Error= real price -estimated /estimated*100

%Error= 14.28-14.28/14.28*100

%Error= 0.0*100

%Error= 0%

Answer:

wouldnt it be 10 lol since its 10 feet in the air

Step-by-step explanation:

Answer: 105 oranges.

Step-by-step explanation:

30% + 25% = 0.55 * 100 = 55

160 - 55 = 105

Answer:

Step-by-step explanation:Ok so yes I agree with him or her if you divide and once you double it and move the Decimal then you should get your answer so yes B is the right answer.

Answer:

answer is B. :)

The graph of the given f(x) shows that: on a coordinate plane, an exponential decay function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 4) and goes through (2, 1).

The graph of a function is a visual representation of the function for which the slope, the x-intercept, and the y-intercept can be shown or determined from the graph.

Given that:

The domain of the function are values of f(x) for which f(x) ranges from:

The graph of the function as shown in the image attached shows that the graph decrease from the 2nd quadrant into the 1st quadrant and approaches = 0. It crosses the y-axis at (0, 4) and goes through (2, 1).

Learn more about graph of a function here:

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Answer:

you need to be more specific

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

Let x represent the number of pounds of lobster sold. Then 25.5-x is the number of pounds of fish. The total money made is ...

  4.25(25.5-x) +9.00x = 196.25

  4.75x + 108.375 = 196.25 . . . . . simplify

  4.75x = 87.875 . . . . . . . . . . . subtract 108.375

  x = 18.5 . . . . . . . . . . . . . . . divide by 4.75

The market sold 7 pounds of fish and 18.5 pounds of lobster.

Answer:

3 1/14

Step-by-step explanation:

subtract whole numbers

combine factors

hope this help :)

Answer:

x>6

Step-by-step explanation:

Answer:

E

Step-by-step explanation

3(x+4)-5(x-1)<5 EXPAND

2x+17<5

Subtract 17 from both sides

2x+17-17<5-17

Simplify

-2x<-12

Multiply both sides by -1 (reverse the inequality right)

(-2x)(-1)>(-12)(-1)

Simplify

2x>12

Divide both sides by 2

2x/2>12/2

Simplify

x>6

Answer:

y = 1/2x + c

6 = 1/2 * (-4) + c

6 = -2 + c

6 = -2 + 8

=> Equation: y = 1/2x + 8