The cost per minute of a conference phone call, originally $2. 80, increased by 20%. What is the new price? $3. 00 $3. 20 $3. 26 $3. 36.

Answers

Answer 1

Answer:

3.36

Step-by-step explanation:

.20 x 2.80 = .56

2.80 + .56 = 3.36


Related Questions

Annie has 5 green and 4 purple shirts for a total of 9 shirts. They each have two buttons. How many buttons does she have total?

Answers

Answer:

18 buttons

Step-by-step explanation:

2 buttons per shirt times the number of shirts (9) gives an answer of 18

Consider the information in the previous questions (Henry only has quarters, nickels, dimes and pennies). Is it mathematically possible for Henry to have exactly 23 pennies if he has a total of $2.41? Defend your conclusion with an equation for the sum of the coins and two or more complete sentences explaining your conclusion.

Answers

Answer:

No

Step-by-step explanation:

The total amount is $2.41.

If the are 23 pennies, then the amount excluding the pennies is:

$2.41 - $0.23 = $2.18

This amount comprises quarters, nickels and dimes.

Each of them is multiple of 5:

Quarter = $0.25Nickel = $0.05Dime = $0.10

Any amount made by the combinations of these has to be multiple of 5 cents. But the sum is $2.18, which is not multiple of 5 cents.

It means Henry can't make it.

Solve for g:
4g
--- =3j+7
h​

Answers

Answer:

g= h(3j+7)

     ---------

          4

Step-by-step explanation:

4g = h(3j + 7)

4g = h*3j+h*7

The graph and table shows the relationship between y, the number of words Jean has typed for her essay and x, the number of minutes she has been typing on the computer. A 2-column table with 9 rows. The first column is labeled x with entries 5, 10, 15, 20, 25, 30, 35, 40, 45. The second column is labeled y with entries 271, 464, 820, 965, 1124, 1501, 1718, 2076, 2257. A graph shows the horizontal axis numbered 20 to 80 and the vertical axis numbered 1000 to 3000. A line increases from 0 to 80. According to the line of best fit, about how many words will Jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250.

Answers

Answer:

3,000 words

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

just did the test

A wooden building has the shape of a rectangular pyramid. The buildings base is 100 meters long and 50 meters wide. The height of each triangular face is 40 meters. How much wood was used to make the entire building?

Answers

Check the picture below.

so let's simply get the area of each of the triangular faces and the base and sum them all up.

[tex]\stackrel{\textit{\Large Areas}}{\stackrel{\textit{front and back}}{2\left[ \cfrac{1}{2}(100)(40) \right]}~~ + ~~\stackrel{\textit{left and right}}{2\left[ \cfrac{1}{2}(50)(40) \right]}~~ + ~~\stackrel{base}{(100\cdot 50)}} \\\\\\ 4000~~ + ~~2000~~ + ~~5000\implies 11000~m^2[/tex]

Napoleon's route through the alps involved a climb of 6km and a descent of 4km. His army travelled twice as fast downhill as it did uphill, the whole journey took 8 hours. How long did it take to reach the top?

Answers

Answer:

6 hours.

Step-by-step explanation:

since that is true we can use trial and error. if every km took an hour it would take six hours up and 4 hours down but they said they were twice as fast going down so that means it would take 2 hours going down. 6 add 2 is 8 which is our total meaning that 6 hours is the right answer

PLEASE HELP!

The diagram represents triangle ABC with angle measures 55°, 80°, and X

Question (a) Use the information on the diagram to determine the measure of x.

Question (b) Order the lengths of the sides of ABC from shortest to longest.

Answers

Not sure for (b)

Step-by-step explanation:

(a)55+80+x=180 (angles inside the triangle)

135+×=+180

x=180-135

x=45

Your freezer produces 8 ice cubes every two hours. Your friends freezer produces 24 ice cubes every 5 hours what is the ratios?

Answers

22 to 24 those are some very very slow freezers but hope that helped

If Θ is in quadrant III and tanΘ >0, then x is negative. True or false.

Answers

Answer:

True

Step-by-step explanation:

We know that [tex]tan\theta=\frac{sin\theta}{cos\theta}[/tex], [tex]sin\theta<0[/tex] in Quadrant III, and [tex]cos\theta<0[/tex] in Quadrant III. Thus, x is indeed negative since [tex]cos\theta<0[/tex].

Complete the following statement. Write your answer as a decimal or whole number.

% of $60 = $18

















or
Complete the following statement. Write your answer as a decimal or whole number.

% of $60 = $18



































or
Complete the following statement. Write your answer as a decimal or whole number.

% of $60 = $18



































or
Complete the following statement. Write your answer as a decimal or whole number.

% of $60 = $18



































or
Complete the following statement. Write your answer as a decimal or whole number.

% of $60 = $18



































or
Complete the following statement. Write your answer as a decimal or whole number.

% of $60 = $18



































or
Complete the following statement. Write your answer as a decimal or whole number.

% of $60 = $18

Answers

$18 is 30% or 0.3 of 60 dollars


Simplify each expression
c. 5 1/9 +8 2/5
d. -1.2+(-3/5)

Answers

Answer:

c. 13 23/45

d. -9/5

Step-by-step explanation:

explanation for c:

(5+8)+(1/9 +2/9) and then add the numbers so it will be

13+23/45 ----> 13 23/45

--------------------------------------------------------------------------------------------------

explanation for d:

convert decimal into fraction------> -6/5-3/5

calculate the difference -------> -9/5 and now you got your answer!!

what is the 10% of 1,500 show all the necessary steps​

Answers

[tex] \rightarrow \: \sf \dfrac{10}{100} \times 1500[/tex]

[tex] \\ \\ [/tex]

[tex] \rightarrow \: \sf 10 \times 15[/tex]

[tex] \\ \\ [/tex]

[tex] \rightarrow \: \sf 150[/tex]

10% × 1500

0.1 × 1500

The answer would be: 150


Hope this helps :)

HELP PLEASE!!! help needed asappp

Answers

Answer:

c

Step-by-step explanation:

t(a+2)= 3+a+2/a+2-3= 5+a/a-1

The answer is c/(5+a)(a-1)

Twice a number added to a smaller number is 5. The difference of 5 times the smaller number and the larger number is 3. Let x represent the smaller number and y represent the larger number.
Which equations represent the situation?

A: 2Y+x=5
5x-y=3

B: 2x+y=5
5y-X= 3

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

D: 2x+y-5
X-5y = 3​

Answers

Answer:

The equations which represents the situation are

1) 2Y+X=5

2) 5X-Y=3

Step-by-step explanation:

~Cornasha_Weeb

Question is in the picture. Please answer

You don't have to explain in full detail if you don't want I just need the answer and a short explanation

Answers

Answer:

[tex]tan(A) = \frac{4}{3}[/tex]

Step-by-step explanation:

Here we see tan(B) has opposite side of 12 and adjacent of 9

using the formula:

[tex]tan(A) = \frac{opposite }{adjacent}[/tex]

[tex]tan(A) = \frac{12}{9}[/tex]

[tex]tan(A) = \frac{4}{3}[/tex]

Answer:

[tex]\textsf{tan(A)}=\frac{4}{3}[/tex]

Step-by-step explanation:

The trig ratio for tan is:  [tex]\textsf{tan}(x)=\mathsf{\frac{O}{A}}[/tex] where

[tex]x[/tex] is the angle O = side OPPOSITE to the angleA = side ADJACENT to the angle

For angle A:

O = 12

A = 9

[tex]\implies \textsf{tan(A)}=\frac{12}{9}\\\\\implies \textsf{tan(A)}=\frac{4}{3}[/tex]

Jake used to live 10 miles from school. After he and his family moved, he now lives 18 miles from school. What is the percent of change in distance from Jake’s old house to his new one? Round your answer to the nearest whole number

Answers

Answer:

80%

Step-by-step explanation:

Based on the given conditions: (18 - 10)÷10

Calculate the sum or difference: 8/10

Cross out the common factor: 4/5

Convert to percentage: 80%

Answer: 80%

Answer:

80%

Step-by-step explanation:

Based on the given conditions, formulate: (18-10) ÷ 10

Calculate the sum or difference: 8/10

Cross out the common factor: 4/5

Convert to percentage: 80%

Answer: 80%

Hope this helps

M is the midpoint of segment CD. Given M(-2,2) and C(2,8), find the coordinates of D.

Answers

[tex]~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ C(\stackrel{x_1}{2}~,~\stackrel{y_1}{8})\qquad D(\stackrel{x_2}{x}~,~\stackrel{y_2}{y}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{ x + 2}{2}~~~ ,~~~ \cfrac{ y + 8}{2} \right)~~ = ~~\stackrel{\stackrel{M}{\downarrow }}{(-2~~,~~2)}\implies \begin{cases} \cfrac{x+2}{2}=-2\\[1em] x+2=-4\\ \boxed{x=-6}\\[-0.5em] \hrulefill\\ \cfrac{y+8}{2}=2\\[1em] y+8=4\\ \boxed{y=-4} \end{cases}[/tex]

i will mark brainliest

Answers

Answer:

2 1/2   (2.5)

Step-by-step explanation:

Multiply all the numbers then divide by 1/2

help me with this please ​

Answers

Answer:

  a. length: 20-2x; width: 12-2x; height: x

  b. V = 4x^3 -64x^2 +240x

  c. cubic trinomial

  d. 262.7 cubic inches maximum for a 2.4 inch square

  e. 15 × 7 × 2.5 inches for 262.5 in³ volume

Step-by-step explanation:

a.

If the square cut from each corner has side length x, the dimensions are ...

height: xwidth: 12 -2xlength: 20 -2x

__

b.

The volume is the product of length, width, and height.

  V = LWH

  V = (20 -2x)(12-2x)(x) = 4(x-10)(x-6)x = 4(x^2 -16x +60)x

  V = 4x^3 -64x^2 +240x

__

c.

The volume function is a cubic trinomial.

__

d.

The maximum volume will be found where the derivative of the volume function is zero.

  V' = 12x^2 -128x +240 = 0

  x^2 -32/3x +20 = 0 . . . . divide by 12

  (x -16/3)^2 = 76/9 . . . . . complete the square

  x = (16 -√76)/3 ≈ 2.4 . . . . size of the square

  V = 4(2.4)(10 -2.4)(6 -2.4) ≈ 262.7 . . . cubic inches

The maximum box volume is about 262.7 cubic inches when the square is about 2.4 inches on each side.

__

e.

A graphing calculator shows there to be two solutions for a volume of 262.5 cubic inches. The rational solution is x = 2.5 inches. The box dimensions would be ...

length = 20 -2(2.5) = 15 incheswidth = 12 -2(2.5) = 7 inchesheight = 2.5 inches

vincent buys a trolley for $4300 and sells it in his shop for $5590. what is the markup percentage? show work

Answers

5590-4300 =1290

1290/4300= 0.3

30%

A blood bank needs 5 people to help with a blood drive. 10 people have volunteered.
Find how many different groups of 5 can be formed from the 10 volunteers.

Answers

The different groups of 5 can be formed from the 10 volunteers is,

⇒ 252

What is the permutation and combination?

Permutation and Combination form the principles of counting and they are applied in various situations.

A permutation is a count of the different arrangements which can be made from the given set of things. In permutation the details matter, as the order or sequence is important.

Here given that,

A blood bank needs 5 people to help with a blood drive. 10 people have volunteered.

Here, We get;

The different groups of 5 can be formed from the 10 volunteers is,

⇒ ¹⁰C₅

⇒ 10! /5! 5!

⇒ 10×9×8×7×6 / 5×4×3×2

⇒ 252

Thus, The different groups of 5 can be formed from the 10 volunteers is,

⇒ 252

To know more about the permutation and combination

brainly.com/question/13715183

#SPJ2

If the image of (x,-3) is (-3,4) under the reflection in y=x , find the value of x.​

Answers

Step-by-step explanation:

4

........................

An ellipse has vertices along the major axis at (0, 8) and (0, –2). The foci of the ellipse are located at (0, 7) and (0, –1). What are the values of a, b, h, and k, given the equation below? a = b = h = k =.

Answers

The values of a, b, h, and k, given the equation below;

[tex]\rm \dfrac{(x-h)^2}{b^2}+\dfrac{(x-k)^2}{a^2}=1\\\\ \dfrac{(x-0)^2}{3^2}+ \dfrac{(x-3)^2}{5^2}=1[/tex]

Given

An ellipse has vertices along the major axis at (0, 8) and (0, –2).

The foci of the ellipse are located at (0, 7) and (0, –1).

Ellipse

It can be seen that the major axis is parallel to the y axis.

The major axis points are;

(h, k +a) = (0, 8)

(h, k -a) = (0, -2)

Here, k + a = 8

k - a = -2

Subtracting the equations;

k + a - k + a = 8 + 2

2a = 10

a = 10/2 = 5

The foci are;

(h, k +c) = (0, 7)

(h, k -c) = (0, -1)

Here, k + c = 7

k - c = -1

Subtracting the equations;

k + c -k + c = 7+ 1

2c = 8

c = 8/2 = 4

The foci are given by;

[tex]\rm c^2=a^2-b^2\\\\b=\sqrt{a^2-c^2} \\\\b = \sqrt{5^2-4^2}\\\\b = \sqrt{25-16} \\\\ b =\sqrt{9}\\\\ b=3[/tex]

The equation is;

[tex]\rm \dfrac{(x-h)^2}{b^2}+\dfrac{(x-k)^2}{a^2}=1\\\\ \dfrac{(x-0)^2}{3^2}+ \dfrac{(x-3)^2}{5^2}=1[/tex]

To know more about ellipse click the link given below.

https://brainly.com/question/10153896


A recipe requires
2 2/3 cups of flour to
make 12 servings. How many cups of
flour are needed to make 18 servings?

Answers

Answer:

22/3=8/3=2.66

if 12 servings =2.6 cup of flour

...18 servings=???????

18×2.6/12=3.9

the answer is 3.9

there are six red marbles and 11 orange marbles in a bag. You randomly choose one of the marbles. What is the probability of choosing a red marble?

Answers

Answer:

The probability of choosing a red marble is 35%.

Step-by-step explanation:

Total marbles: 17

Red marbles: 6Orange marbles: 11

[tex]\frac{6}{17} = 0.35[/tex]

i need answer please​

Answers

it is a rectangle because it is a closed shaped with 4 straight sides

Help its a Math problem !! i am confused

Answers

Answer: D

Step-by-step explanation:

If you look at the quadratic formula, we see that b=5, a=5, and c=3.

So ax^2 + bx + c = 0 -> 5x^2 + 5x + 3 = 0

equivalent fractions for
2/9
and
5/6
using the least common denominator.

Answers

Answer:

4/18 and 15/18

Step-by-step explanation:

trust me bro

Answer:4/18 and 15/18

Step-by-step explanation:trust the progres kk

this is not Math its SCIENCE if you can answer all u get to be brailiest

Answers

Answer:

1a) A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.

1b)An ionic compound formed by acid-base reactions and without those ions is called a salt. Water is definitely one of the most important inorganic compounds to all living things. It is a compound comprised of two hydrogen atoms and one oxygen atom.

The four major classes of biological macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

2a)Regulates body temperature. Moistens tissues in the eyes, nose and mouth. Protects body organs and tissues. Carries nutrients and oxygen to cells.

2b)If a cell is seriously deprived of water,

this lack of water would most likely affect

the cell's enzymes because:

• The cytoplasm and plasma

membrane would not function

properly

Both the plant and animal cell needs

water in order to perform their basic

functions which include transport of

materials, waste distribution, production

of genetic information, and many more.

As a result of this, we can see that there

would be a serious problem if any

of these cells are deprived of water

which would lead to the cytoplasm and

plasma membrane to partially shut

down because they would not be able to

engage in protein synthesis and other

important functions.

3a)Carbohydrates provides energy rich for organic compounds made of elements carbon, hydrogen and oxygen. The lipids contain the element nitrogen. The carbohydrates contain the only elements carbon, hydrogen, and oxygen.

3b)Organic nitrogen occurs in many forms, including amino acids, proteins, nucleic acids, nucleotides, and urea.

3c)A carbohydrate has only Carbon, Hydrogen and Oxygen, with the hydrogen and oxygen in the ratio 2:1. A protein is made of amino acids. ... So without nitrogen atoms the compound can not be a protein.

PLZ HELP!!
Solve by substitution
y = -5x
y + 4x = -1
Explain PLZ

Answers

Answer:

x= 1

Step-by-step explanation:

The value of y = -5x

Plug it in the equation of y + 4x = -1

So it becomes, -5x + 4x = -1

Combine like terms which are -5x and 4x which equals to -x

Eliminate the negative sign because x cannot be negative. Apply that to -1. It becomes 1.

Hope you find this helpful!

Answer:

Step-by-step explanation:

Equation 1: y = -5x

Equation 2: y + 4x = -1

Step 1. Substitute y in equation 2 using equation 1

You would get, -5x + 4x = -1

Step 2. Combine like terms

-x = -1

Step 3. Cross out the negatives

x = 1

Step 4. Substitute x in Equation 1 to get y

y = -5(1)

y = -5

Hope this helps :)

Have a great day!

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