1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Phoenix [80]
4 years ago
9

20% of 55 is what number

Mathematics
1 answer:
Vitek1552 [10]4 years ago
7 0
20% of 55 is 11

Workingout: 20%/100% = 0.2
                     0.2 x 55 = 11

:)

You might be interested in
2. How can the trend line equation be used to
ELEN [110]

Answer:

c. Substitute 22 for x in the equation.

Step-by-step explanation:

The scatter plot of this question is missing, so i have attached it.

The slope equation of this is written as;

y = mx + b

Where;

y is the values in the y-axis

x is the values in the x-axis

b is the intercept on the x-axis

Now, from the scatter plot of the trend line, we can see that the values in the x-axis represent the number of years after 1970 while the y-axis shows us the price of gas per gallon for each corresponding year.

Now, we want to use the trend line equation be used to predict the cost of gas per gallon in the year 1992.

Year 1992 means 22 years after 1992. Since we have our y-intercept from the scatter plot to be 0.25, then to find the cost of gas per gallon in the year 1992, we will just plug in 22 for x and 0.25 for b into the slope line equation.

3 0
3 years ago
David’s bank offers a 36-month Certificate of Deposit (CD) with an APR of 2.25%. Use the compound interest formula to answer the
tamaranim1 [39]

Using compound interest, it is found that:

a) A(8) = 2389.66

b) t = 31.15

c) P = 1870.85

Compound interest:

A(t) = P\left(1 + \frac{r}{n}\right)^{nt}

  • A(t) is the amount of money after t years.  
  • P is the principal(the initial sum of money).  
  • r is the interest rate(as a decimal value).  
  • n is the number of times that interest is compounded per year.  
  • t is the time in years for which the money is invested or borrowed.

In this problem:

  • The APR is of 2.25%, hence r = 0.0225.
  • No information about the number of compounding per year, hence n = 1.

Item a:

P = 2000, hence:

A(t) = P\left(1 + \frac{r}{n}\right)^{nt}

A(8) = 2000\left(1 + \frac{0.0225}{1}\right)^{8}

A(8) = 2389.66

Item b:

A(t) = 4000, hence:

A(t) = P\left(1 + \frac{r}{n}\right)^{nt}

4000 = 2000\left(1 + \frac{0.0225}{1}\right)^{t}

(1.0225)^t = 2

\log{(1.0225)^t} = \log{2}

t\log{1.0225} = \log{2}

t = \frac{\log{2}}{\log{1.0225}}

t = 31.15

Item c:

A(3) = 2000, hence:

A(t) = P\left(1 + \frac{r}{n}\right)^{nt}

2000 = P\left(1 + \frac{0.0225}{1}\right)^{3}

P = \frac{2000}{(1.0225)^3}

P = 1870.85

A similar problem is given at brainly.com/question/24850750

7 0
2 years ago
What is the area if this figure?A. 49.5in<br>B. 66.5in<br>C. 84in<br>D91in
Arisa [49]

Answer:


Step-by-step explanation:

7 x 7 = 49 which is the area of the square

7 x 12 x .5 = 42 so if you add them together

49 + 42 = 91

4 0
3 years ago
Read 2 more answers
A car's gas tank holds 18 gallons of gas when it is full. If the car 's gas tank is currently 65% full, how many gallons of gas
AlexFokin [52]

Answer:

11.7 Gallons

Step-by-step explanation:

First turn the percentage into a decimal then multiply it by the whole number which is 18 and you should get 11.7 and that is how many gallons are currently in the tank

3 0
4 years ago
Read 2 more answers
What type of quadrilateral is quadrilateral ABCD if AB=4x-2, BC=2x+12, DC=3x+5, AD=6x-16, AC=4x+12, DB=8x-10, and x=7? Explain a
ivanzaharov [21]

Answer:

The quadrilateral ABCD is a square.

Step-by-step explanation:

According to the statement, AB, BC, CD and DA are the sides of the quadrilateral, whereas DB and AC are its diagonals. If we know that x = 7, AB = 4\cdot x - 2, BC = 2\cdot x + 12, DC = 3\cdot x +5, AD = 6\cdot x -16, AC = 4\cdot x + 12 and DB = 8\cdot x -10, the lengths of each line segment are respectively:

Sides

AB = 4\cdot (7) -2

AB = 26

BC = 2\cdot (7) +12

BC = 26

DC = 3\cdot (7) +5

DC = 26

AD = 6\cdot (7) -16

AD = 26

Diagonals

AC = 4\cdot (7) +12

AC = 40

DB = 8\cdot (7) - 10

DB = 40

This information indicates that this quadrilateral is a square because of these characteristics:

1) All sides have the same length.

2) The ratio of any diagonal to any side is \sqrt{2}.

3 0
3 years ago
Other questions:
  • What is 0.852 as a mixed number
    15·1 answer
  • Please help ASAP will name brainliest
    14·1 answer
  • Prove that 2n^3 + 3n^2 + n is divisible by 6 for every integer n &gt; 1 by mathematical induction. (7 marks)
    8·1 answer
  • 22 as a decimal and percent
    7·2 answers
  • Dr. Jones is interested in studying how white noise can influence participants' sleep quality.
    9·1 answer
  • Factor the expression using the GCF.<br> 36x – 28 =
    15·1 answer
  • Solve the system using substitution. 4x + 4y = - 2 y = - x
    15·1 answer
  • (05.03 MC)What is the area, in square units, of the polygon shown here?
    5·2 answers
  • get me the ans Two circles with radii 3.5 cm and 2.5 cm touch each other internally. Find the distance between their centres.
    8·1 answer
  • Angle ABC and angle BD are complementary.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!