%of 25 is 14. what percent of 20 is 11? 15 is

QUESTION POSTED AT 14/12/2019 - 05:12 PM

Answered by admin AT 14/12/2019 - 05:12 PM

The first question:

'is' in mathematics means equal
'of' in mathematics means multiplication

\frac{x}{100} \times 25 = 14\\\\\frac{x}{4} = 14\\\\\boxed{\bf{x=56}}

56% of 25 is 14.

And the second question:

'is' in mathematics means equal
'of' in mathematics means multiplication

\frac{x}{100} \times 20 = 11\\\\\frac{x}{5} = 11\\\\\boxed{\bf{x = 55}}

55% of 20 is 11.
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Related questions

Rachel can buy licorice sticks for $0.75 and cherry candies for $0.50 and has a budget of $25 if her expenses are represented by the equation 0.75x+0.05y=25 where x is the number of licorice sticks and y is the number of cherry candies, how many cherry candies can she But if she wishes to spend the entire $25 on cherry candies

You can buy 50 of the cherry candies with all of the 25$ because you do 25 divided by 0.50 and get 50 and then if you would like to check that do 50 x 0.50 and you will still get 25$

ANSWERED AT 22/01/2020 - 02:27 AM


QUESTION POSTED AT 22/01/2020 - 02:27 AM

The mean if 4 consecutive even number is 15

Cant get any number without a decimal other than that none work

ANSWERED AT 22/01/2020 - 02:23 AM


QUESTION POSTED AT 22/01/2020 - 02:23 AM

To find the percent of a discount, ______________. A. find the percent of decrease from the original price to the new price. B. find the percent of increase from the new price to the original price. C. multiply the original price by the new price. D. divide the new price by the original price.

The correct and best answer would be letter B. To find the percent of a discount, you have to find or solve for the percent of increase from the new price to the original price. This is because you usually have the new price being given to you so you compare it with the old price to know the percent discount.

ANSWERED AT 22/01/2020 - 02:23 AM


QUESTION POSTED AT 22/01/2020 - 02:23 AM

A ball has a diameter of 14 inches. Which choice is closest to its surface area? Use 3.14 to approximate pi.

So we know the formula to find the surface area of a sphere (ball) is:
4 x pi x r^2

to find the radius, divide the diameter by 2 to get:
14 / 2 = 7

now we substitute in the values:
4 x pi x 7^2

simplify:
4 x pi x 49

simplify:
12.56 x 49

simplify:
615.44 inches

the answer is above in bold
hope it helped :)

ANSWERED AT 22/01/2020 - 02:22 AM


QUESTION POSTED AT 22/01/2020 - 02:22 AM

How many quarts are equivalent to 14 liters? Round your answer to the nearest tenth.

It's 14.7 I just answered it.

ANSWERED AT 22/01/2020 - 02:19 AM


QUESTION POSTED AT 22/01/2020 - 02:19 AM

A sequence is defined recursively using the formula f(n + 1) = f(n) – 5 . Which sequence could be generated using this formula? *1, –5, 25, –125, ... *2, 10, 50, 250, ... *3, –2, –7, –12, ... *4, 9, 14, 19, ...

Answer:

Option C. 3, -2, -7, -12....

Step-by-step explanation:

The sequence is defined recursively using the formula f(n+1) = f(n) - 5

We have to identify the sequence generated by this formula.

B). 1, -5, 25, -125.....

f(n+1) = -5 and f(n) = 1

Therefore - 5 = 1 - 5

⇒ -5 ≠ -4

This sequence is not following the formula.

B). 2, 10, 50, 250.........

f(n+1) = 10 and f(n) = 2

Now we use the formula

10 = 2 - 5

10 ≠ -3

This sequence is not following the formula.

C). 3, -2, -7, -12

f(n+1) = -2 and f(n) = 3

We put this value in the formula

-2 = 3 - 5

-2 = -2

Therefore , the sequence is following the formula.

D). 4, 9, 14, 19........

f(n+1) = 9 and f(n) = 4

9 = 4 - 5

9 ≠ -1

Therefore the formula is not applicable to form this sequence.

Option C. is the answer.

ANSWERED AT 22/01/2020 - 02:16 AM


QUESTION POSTED AT 22/01/2020 - 02:16 AM

Toni can carry up to 11 lb in her backpack. Her lunch weighs 1 lb, her gym clothes weigh 2 lb, and her books (b) weigh 2 lb each. How many books can she carry in her backpack?

4 books.bcoz 1lb+2lb=3lb.Toni can carry upto 11lb.So 3-11=8. One bookk weigh 2lb ,so 8÷2=4.

ANSWERED AT 22/01/2020 - 02:11 AM


QUESTION POSTED AT 22/01/2020 - 02:11 AM

If Y varies directly with x and y= 20 when k= 4, what is the value of x?

'y' varies directly with 'x',

y=kx

20=4x
x=5

ANSWERED AT 22/01/2020 - 02:11 AM


QUESTION POSTED AT 22/01/2020 - 02:11 AM

What is the value of x in the equation (x + 12) = (x + 14) – 3?

 These points, x = –2/3 and x = 3

ANSWERED AT 22/01/2020 - 02:08 AM


QUESTION POSTED AT 22/01/2020 - 02:08 AM

If cos x = sin(20 + x)° and 0° < x < 90°, the value of x is (What?)°.

       cos(x) = sin(x + 20)
       cos(x) = sin(x)cos(20) + cos(x)sin(20)
       cos(x)                       cos(x)
              1 = tan(x)cos(20) + sin(20)
          cos(20)           cos(20)
    sec(20) = tan(x) + tan(20)
         1.06 ≈ tan(x) + 0.36
       - 0.36               - 0.36
         0.7 = tan(x)
tan⁻¹(0.7) = tan⁻¹[tan(x)]
          35 = x

0 < x < 90
0 < 35 < 90

ANSWERED AT 22/01/2020 - 02:06 AM


QUESTION POSTED AT 22/01/2020 - 02:06 AM

Blaine County, Idaho, has a population of more than 20,000 people. What is the order of magnitude for the number of people living in this county?

The order of magnitude is essentially the number of powers of 10, which means that numbers 1-10 have an order of magnitude 1.

Then numbers 11-100 have an order of magnitude 2.
Then numbers 111-1000 have an order of magnitude 3.
Then numbers 1111-10000 have an order of magnitude 4.
Then numbers 11111-100000 have an order of magnitude 5.

And our number is in the last part! so the answer is "5".



ANSWERED AT 22/01/2020 - 02:01 AM


QUESTION POSTED AT 22/01/2020 - 02:01 AM

$30:$6 Simplify the ratio. A. 1:5 B. 3:15 C. 5:1 D. 15:3

The answer is C because 6 goes into 6 one time, and 30 five times, giving you 5:1.

ANSWERED AT 22/01/2020 - 02:01 AM


QUESTION POSTED AT 22/01/2020 - 02:01 AM

Paul is going to have the exterior of his home painted. Painting USA charges $75.00 to come out and evaluate the house plus $25.00 per hour of labor. Upscale Home Painting does not charge to evaluate the house. However, they charge $40.00 per hour. If it takes 25 hours to paint Paul’s house, the most cost effective company will be? The cost of painting the house will be the same for both companies if the number of hours required to paint Paul’s house is?

The most cost effective company will be:

$75.00
25 hours

Painting USA: Fixed Cost: $75; Variable Cost: $25x
Total Cost = 75 + 25(25) = 75 + 625 = 700

Upscale Home Painting: Fixed Cost: $0; Variable Cost: $40x
Total Cost = 40(25) = 1,000

The most cost effective company will be Painting USA whose charges will amount to $700


The cost of painting the house will be the same for both companies if the number of hours required to paint Paul's house is:

Painting USA:
Total Cost: 75 + 25(25) = 75 + 625 = 700

Upscale Home Painting
Total Cost: 40(16.5) = 40 + 660 = 700

The cost of painting the house will be the same for both companies if the number of hours required to paint Paul's house is approximately between 16.5 and 25 hours.

just look the question it's there

ANSWERED AT 22/01/2020 - 01:54 AM


QUESTION POSTED AT 22/01/2020 - 01:54 AM

A purse contains $1.15 in nickles and dimes and has 20 coins. How many nickles are in the purse?

There are 23 nickles in her purse

ANSWERED AT 22/01/2020 - 01:52 AM


QUESTION POSTED AT 22/01/2020 - 01:52 AM

Factor completely x2 − 10x + 25.

X^2-10x+25 = (x-5)^2 or (x-5)(x-5)

ANSWERED AT 22/01/2020 - 01:47 AM


QUESTION POSTED AT 22/01/2020 - 01:47 AM

What are the discontinuities of the function f(x) = the quantity of x squared plus 6 x plus 9, all over 3 x plus 15.? A. x ≠ −3 B.x ≠ −2 C. x ≠ −8 D. x ≠ −5

Answer:

The correct option is D.

Step-by-step explanation:

The given function is

f(x)=\frac{x^2+6x+9}{3x+15}

f(x)=\frac{x^2+2(x)(3)+3^2}{3(x+5)}

Using algebraic property:

(a+b)^2=a^2+2ab+b^2

f(x)=\frac{(x+3)^2}{3(x+5)}

f(x)=\frac{(x+3)(x+3)}{3(x+5)}

A rational function is discontinuous at that point where the value of denominator equal to 0.

Equate denominator equal to 0.

3(x+5)=0

x+5=0

x=-5

Therefore function is discontinuous at x=-5.

The discontinuity of the function is

x\neq -5

The function f(x) is not defined at x=-5.Therefore option D is correct.

ANSWERED AT 22/01/2020 - 01:45 AM


QUESTION POSTED AT 22/01/2020 - 01:45 AM

Which second degree polynomial function has a leading coefficient of 2 and roots –3 and 5? f(x) = 2x2 + 4x – 30 f(x) = 2x2 + 2x – 15 f(x) = 2x2 – 4x – 30 f(x) = 2x2 – 2x – 15

Answer:

f(x) = 2x2 – 4x – 30

Step-by-step explanation:

Got it right

ANSWERED AT 22/01/2020 - 01:44 AM


QUESTION POSTED AT 22/01/2020 - 01:44 AM

Consider the division of 15h2 + 10h + 25 by 5h. = X + Y + What are the values of X and Y? X = 3 and Y = 2 X =3/h and Y = 5/h X = 3h and Y = 2 X = 3/5h and Y = 2/5h

15h^2 +10h +25 /5h = x +y +

15h^2 +10h +25/5h = 3h +2
15h^2
---------
    0    10h 
          10h
          ------
            0   25

so x=3h and y =2 than the 3rd choice is correct ,right sure 

ANSWERED AT 22/01/2020 - 01:44 AM


QUESTION POSTED AT 22/01/2020 - 01:44 AM

What are the factors of m2 – 12m + 20? m – 14 and m – 6 m – 10 and m – 2 m – 9 and m – 3 m – 5 and m – 4

M^2 -12m +20 = m*m -10m -2m +20 = m(m-10) -2(m-10) = 

=(m-10)(m-2)

so the second choice is right sure 

ANSWERED AT 22/01/2020 - 01:43 AM


QUESTION POSTED AT 22/01/2020 - 01:43 AM

Which of the following is the solution to the equation 4 / 5n = 20? n = 4 n = 12 n = 16 n = 25

N=25 because 20 divided by 4 is 5 which is 1/5 of n meaning 5x5 is 25

ANSWERED AT 22/01/2020 - 01:41 AM


QUESTION POSTED AT 22/01/2020 - 01:41 AM

The expression y2 – 10y + 24 has a factor of y – 4. What is another factor of y2 – 10y + 24? y – 20 y – 14 y – 8 y – 6

We may answer the question above by dividing the expression y² - 10x + 24 with the given factor, y - 4. The division would give an answer of y - 6. Thus,

                                y² - 10x + 24 = (y - 4)(y - 6)

The answer is the fourth choice, y - 6.

ANSWERED AT 22/01/2020 - 01:39 AM


QUESTION POSTED AT 22/01/2020 - 01:39 AM

What is the first step when rewriting y = 6x2 + 18x + 14 in the form y = a(x – h)2 + k? 16 must be factored from 18x + 14 x must be factored from 6x2 + 18x 6 must be factored from 6x2 + 14 6 must be factored from 6x2 + 18x

A quadratic equation has the general form of: 

y=ax² + bx + c

It can be converted to the vertex form in order to determine the vertex of the parabola. It has the standard form of:

y = a(x+h)² - k

where h and k represents the vertex, h represent the point in the x axis and k is the point in the y axis. From the choices given, the first step in rewriting the equation is that 
6 must be factored from 6x2 + 18x. Which yields to:

y = 6(x^2 + 3x) + 14

ANSWERED AT 22/01/2020 - 01:38 AM


QUESTION POSTED AT 22/01/2020 - 01:38 AM

Which equation is y = 6x2 + 12x – 10 rewritten in vertex form? y = 6(x + 1)2 – 11 y = 6(x + 1)2 – 10 y = 6(x + 1)2 – 4 y = 6(x + 1)2 – 16

Answer:

The correct option is 4.

Step-by-step explanation:

The given equation is

y=6x^2+12x-10

y=6(x^2+2x)-10

To make the vertex form of the given equation add and subtract (\frac{-b}{2a})^2 in the parenthesis.

(\frac{-b}{2a})^2=(\frac{-2}{2(1)})^2=1^2=1

Add and subtract 1 in the parenthesis.

y=6(x^2+2x+1-1)-10

y=6(x^2+2x+1)-6-10

y=6(x+1)^2-16

Therefore the correct option is 4.

ANSWERED AT 22/01/2020 - 01:37 AM


QUESTION POSTED AT 22/01/2020 - 01:37 AM

MACRS depreciates automobiles in 6 years using these percents: 20% the first year; 32% the second year; 19.2% the third year; 11.52% the fourth and fifth years; and 5.76% the sixth year. For an automobile that cost $30,000, what is the book value at the end of the third year? (Hint: To start, calculate the annual and accumulated depreciation for the first three years.)

Answer:

The book value at the end of the third year is $8640.

Step-by-step explanation:

Book value at end of year = Original Cost - Accumulated Depreciation

The automobile cost is $30000.

After 1st year, the depreciation will be =0.20\times30000=6000

After 2nd year the depreciation will be = 0.32\times30000=9600 dollars

Similarly after 3rd year the depreciation will be = 0.192\times30000=5760

Now, adding all the depreciation amounts:

6000+9600+5760=21360 dollars

Book Value at end of year = 30000-21360=8640 dollars

Therefore, the book value at the end of the third year is $8640.

ANSWERED AT 22/01/2020 - 01:37 AM


QUESTION POSTED AT 22/01/2020 - 01:37 AM

What is the factored form of a2 – 121? (a – 121)(a – 1) (a – 11)(a + 11) (a + 11)(a + 11) (a – 121)(a + 1)

A^2 -121 = a^2 -11^2 = (a-11)(a+11)

so the second choice is right sure 

ANSWERED AT 22/01/2020 - 01:36 AM


QUESTION POSTED AT 22/01/2020 - 01:36 AM

The quotient of (x5 – 3x3 – 3x2 – 10x + 15) and a polynomial is (x2 – 5). What is the polynomial? x5 – 3x3 – 2x2 – 10x + 10 x7 – 8x5 – 3x4 + 5x3 + 30x2 + 50x – 75 x3 + 2x – 3 x5 – 3x3 – 4x2 – 10x + 20

The polynomial  x^5 - 3x^3- 3x^2- 10x + 15 has 5th degree and the polynomial  x^2- 5 has 2nd degree, then the quotient is the polynomial of 5-2=3rd degree.

Only option 3 can be correct. Let check that polynomial  x^3 + 2x - 3 is a quotient:

 (x^3 + 2x - 3)( x^2- 5)=x^5-5x^3+2x^3-10x-3x^2+15=x^5-3x^3-3x^2-10x+15  - true.

Answer: correct choice is C.

ANSWERED AT 22/01/2020 - 01:35 AM


QUESTION POSTED AT 22/01/2020 - 01:35 AM