11. Albert has 12 more 10 cent coins than 20-cent
coins. The total value of all his coins is $5.40. Find
the total number of coins he has.

Answers

Answer 1

Step-by-step explanation:

Let x be the number of 10 cent coins

Let y be the number of 20 cent coins

given

[tex]x = y + 12 \\ x - y = 12[/tex]

as equation 1

and

[tex]0.1x + 0.2y = 5.4[/tex]

as equation 2.

Now we will use elimination method to solve simultaneous equations.

Now we multiply equation 1 by 0.2 to eliminate y and solve for x first.

[tex]0.2 \times x - 0.2 \times y = 12 \times 0.2 \\ 0.2x - 0.2y = 2.4[/tex]

Let this new equation be equation 3.

Now use equation 2 + equation 3.

[tex]0.1x + 0.2x + (0.2y + ( - 0.2y)) = 5.4 + 2.4 \\ 0.3x = 7.8 \\ x = 7.8 \div 0.3 \\ = 26[/tex]

Substitute x into equation 1,

[tex]x = y + 12 \\ y + 12 = x \\ y = x - 12 \\ = 26 - 12 \\ = 14[/tex]

Therefore total number of coins = x + y = 26 + 14 = 40

Answer 2

Answer:

in total he has 62 cents

Step-by-step explanation:

I hope it's the correct answer if I'm wrong tell me right away.

11. Albert Has 12 More 10 Cent Coins Than 20-centcoins. The Total Value Of All His Coins Is $5.40. Findthe

Related Questions

I need help as fast as possible

Answers

Answer:

Social by contact I think but I don’t

Step-by-step explanation:

If anybody willing to help me with my geometry work that’s done by 6pm please contact me by my number 9014132287

Answers

Do not listen to those bots

what is the volume of this rectangular prism 5/4×5/3×5/2​

Answers

Answer:

the answer is one!

Step-by-step explanation:

Answer:

answer: 125/24 cm3

volume= 5/3*5/2*5/4 cm3

=125/24 cm3

What is the perimeter of a square with an area of 256 cm^2

Answers

Answer:

16cm

Step-by-step explanation:

The area of a square is calculated by perimeter * perimeter. 256 is made of 16*16

Answer:

you know that the Area of a square is calculated as S^2 or SxS

to find the side length just do square root of 256

wich is 16 cm

multiply by 4 and the perimeter is 16*4= 64

Period
Readiness TEKS 9.C, 9.D
6. Omar takes out a college loan for $28,000 to cover his
expenses for tuition, books, room, and housing. According to the
terms of the loan, he won't have to make payments for six years,
but the loan will continue to compound interest annually at 11%.
The table below shows the amount of the loan he owes assuming
he make no payments during the six years.
Number of Years
1
2
3
4
5
6
Loan Amount Owed
$28,000.00
$31,080.00
$34,498.80
$38,293.67
$42,505.97
$47,181.63
$52,373.61
Which function represents the amount of the loan owed in relation
to the number of years, x?
A. f(x) = 28,000(1.11)*
B. f(x) = 28,000(0.11)
C. f(x) = 28,000(11)*
D. f(x) = 28,000 + 1.11%

Answers

This for real what y’all college kids need go threw:0
To the number of years x?

The answer is B

A linear function that represents the number of animals adopted from the shelter is compared to a different linear function that represents the hours volunteers work at the shelter each week. Describe the key features of the functions that are needed to determine if these lines intersect.

Answers

Step-by-step explanation:

Step-by-step explanation:

Given the table:

Month              f(x) = Number of imports    g(x) = Number of exports

January (1)                3                                                1

February (2)             4                                                3

March (3)                  5                                                5

April (4)                     6                                                7

From the table, it is clear that:

Number of imports = number of month + 2

so

also

Number of exports  = 2(number of month) + 1

so

Therefore, the number of imports equals the number of months plus one. i.e., which is a linear function.

If we compare it with the slope-intercept form of the line

Then,

slope = m = 1

y-intercept = 2

Also number of exports equals is also a linear function.

i.e.  

Here,

slope = m = 2

y-intercept = -1

If there is some point that is equal in both the function then it can be said that they are intersecting.

What is a function?

A function is a relation in which each values of x have the value of y.

How to determine whether two functions are intersecting?

The key features of the functions :

Functions are equal at that point at which they are intersecting.

Learn more about functions at https://brainly.com/question/4025726

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Which statement is false ?
A . Every rational number is real.
B. No irrational number is an integer.
C. Every integer is also a rational number.
D. Every real number is also rational.

Answers

The answer I got was D

What integer represents a $11 withdrawal?

Answers

Answer:

-11

Step-by-step explanation:

When you withdraw, you take away, so it is a negative value.

Answer: -11

Can someone please explain to me how to do this

Answers

Answer:

-7

Step-by-step explanation:

-9(x+3)=36

-9x-27=36

-9x=36+27

-9x=63

-9x/9=63/9

x=-7

please help!!!!!!!!!!!!!!1

Answers

Answer:

B

C

E

Step-by-step explanation:

5+2=7

3x5=15

5-5=0

Answer:

A.  20 - x = 5     X = 15

B.  x + 2 = 7       X = 5

C.  3x = 15         X = 5

D.  5x = 15         X = 3

E.   x - 5 = 0       X = 5

Step-by-step explanation:

For A

Steps

20 - x = 5

subtract 20 from both sides.

20 - x - 20 = 5 - 20

Simplify

-x = -15

Divide both sides by negitive 1

-x/-1 = (-15)/ -1

Simplify

x = 15

For B

Steps

x + 2 = 7

subtract 2 from both sides.

x + 2 - 2 = 7 - 2

Simplify

x = 5

For C

Steps

3x = 15

Divide both sides by 3

3x/3 = 15/3

Simplify

x = 5

For D

Steps

5x = 15

Divide both sides by 5

5x/5 = 15/5

Simplify

X = 3

For E

Steps

x - 5 = 0

Add 5 to both sides

x - 5 + 5 = 0 + 5

Simplify

X = 5

That was A lot of math lol but I hope that helped

solve the enquality 2x+1>11​

Answers

x>5
Since 2x>11-1 is 2x>10 divide by 2
And we get x>5

Step-by-step explanation:

2x+1>11 1 is positive integers so it have to be cancelled by negative integer 1

2x>11-1

2x>10 two will be cancelled by two to get x

then we divide 2 from 10

x>5 this means x is greater than 5

{x=6,7,8,...}

Convert the angle 2π/3 radians to degrees.

Answers

Answer:

2π/3 radians is equal to 120°.

Step-by-step explanation:

In this problem, we need to convert the angle 2π/3 radians to degrees.

The relation radian and degree is given by :

[tex]D=\dfrac{180}{\pi}\times R[/tex]

Substitute all the values,

[tex]D=\dfrac{180}{\pi}\times \dfrac{2\pi }{3}\\\\D=120^{\circ}[/tex]

So, 2π/3 radians is equal to 120°.

Find the volume of a sphere with a diameter of 8cm

Answers

Answer:

V = 267.95

Step-by-step explanation:

Volume of a Sphere:

V = 4/3πr³

r = d/2

r = 4

Work:

V = 4/3πr³

V = 4/3(3.14)(4³)

V = 4/3(3.14)(64)

V = 267.95

Answer:

268.1 cm^3

Step-by-step explanation:

The formula for the volume of a sphere of radius r is V = (4/3)(pi)(r)^3.

If the diameter of this sphere is 8 cm, then the radius is 4 cm, and r^3 = 64 cm^3.  Thus, the volume is:

V = (4/3)(3.14)(64 cm^3) = 268.1 cm^3

The following data describes weekly gross revenue (), television advertising expenditures (), and newspaper advertising expenditures () for Showtime Movie Theaters.

Weekly Gross Revenue Television Newspaper Advertising Advertising
() () ()
95 5.0 1.5
90 2.0 2.0
95 4.0 1.5
92 2.5 2.5
95 3.0 3.3
94 3.5 2.3
94 2.5 4.2
94 3.0 2.5

Required:
Find an estimated regression equation relating weekly gross revenue to television advertising expenditures and newspaper advertising expenditures (to decimals).

Answers

Answer:

Step-by-step explanation:

Please help due in a few hours (will mark brainliness)
4. The table shows the number of minutes of exercise for each person. Compare and contrast the measures of the variation for the both weeks.

Answers

Both sets of data have the same median number of minutes. They contrast because the middle data in the first set are grouped more closely than the middle data in the second, and because the ranges are different.

I need work shown as well

Answers

Answer:

Step-by-step explanation:

the area of the squared is 5 * 5 = 25

the area of the triangle is 1/2*base*height = 1/2*2*5= 5

the area of the circle is  [tex]\pi[/tex][tex]r^{2}[/tex] = [tex]\pi[/tex][tex]2.5^{2}[/tex] = 19.625

now add the pieces up for the total

25+5+19.625 = 49.625 [tex]in^{2}[/tex]

:)

First, find the area of the semi-circle.

A= pi*radius squared

Find your radius. The diameter is 5, half of that is 2.5

Input into the formula

A= pi*2.5^2

  =3.14*6.25

  =19.625 in^2

You can round that to about 19.6 inches.

Find the area of the square

A=s^2

 = 5^2

 = 25 in^2

Find the area of the triangle.

A= b*h/2

 = 2*5/2

 = 10/2

 = 5 in^2

Add it all up.

19.6+ 25 + 5= 49.6

∴ 49.6 in²

Best of luck!

Is 3 tens more than 25 ones

Answers

Answer:

yes ofc  boiiiiii 3 tens=30 ones boiiii and 25 ones=2 tens and 5 ones boiiiii

Step-by-step explanation:

yes,3 tens= 30 dollars and 25 ones= 25 dollars.

2y+27=5y
Simplify!!!

Answers

Answer:

9

Step-by-step explanation:

group like terms

27=3y

27/3=y

9=y

Answer:

y=9

Step-by-step explanation:

2y+27=5y

-2y       -2y

27=3y

3     3

9=y

simplify 2 x 4r x 2y​

Answers

Answer:

What does r and y equal too?

Step-by-step explanation:

Answer:

[tex] = 2(1 \times 2r \times y) \\ = 2(2r \times y) \\ = 4ry[/tex]

There are 25 students in Ms. Hunter's class. Seventeen of the students in her class rode the bus home today. The rest walked home. Which model best represents the percentage of students that rode the bus home and the percentage of students that walked home?
A 32% walked home 68% rode the bus
B 68% walked home 32% rode the bus
C 8% walked home 17% rode the bus
D 17% walked home 25% rode the bus​

Answers

Answer:

68% rode the bus; 32% walked home

Step-by-step explanation:

When Janelle was born, her grandmother put $200 into a college savings account for her. Each month, her grandmother adds $50 to the account. Which inequality can be used to find m, the number of months it will take for Janelle’s savings account to have more than $1,250 in savings?

Answers

it would take 21 months for her to have exactly 1250

Will mark brainliest

Answers

Answer:

ummm where the pic bro?

Step-by-step explanation:

Help, what are m<1 and m<2???

Answers

Answer:

M1 and M2 money have several definitions, ranging from narrow to broad. M1 = coins and currency in circulation + checkable (demand) deposit + traveler's checks. M2 = M1 + savings deposits + money market funds + certificates of deposit + other time deposits.

Step-by-step explanation:

HELP AYUDA ✋
.
what is the constant of proportionality for the graph shown below?
.
/pls pls pls​

Answers

Answer:

10

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

points on line:  (0,0), (1,2), (2,4), (3,5) etc

rise by two, run by one means a slope (or constant of proportionality) of 2

Find the perimeter of the polygon with vertices of the triangle A(-2, 4), B (3, 4), and C (3, -4) answer quickly​. a b and c aren't answer choices​

Answers

Step-by-step explanation:

Three coordinates of triange are given to us and we need to find its perimeter . We know that perimeter is the sum of all sides . Lets find the distance between each sides using distance formula .

• Distance between A and B :-

[tex]\tt\to D_{(AB)} =\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\\tt\to D_{(AB)} =\sqrt{(3-2)^2+(4-4)^2}\\\\\tt\to D_{(AB)} =\sqrt{( 1^2+0^2 )} \\\\\tt\to D_{(AB)} =\sqrt{1} \\\\\tt\to \boxed{\orange{\tt D_{(AB)} = 1\ units }}[/tex]

_________________________________

• Distance between A and C :-

[tex]\tt\to D_{(AC)} =\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\\tt\to D_{(AC)} =\sqrt{(3-2)^2+(4+4)^2}\\\\\tt\to D_{(AC)} =\sqrt{( 1^2+8^2 )} \\\\\tt\to D_{(AC)} =\sqrt{65} \\\\\tt\to \boxed{\orange{\tt D_{(AC)} = \sqrt{65}\ units }}[/tex]

_________________________________

• Distance between C and B :-

[tex]\tt\to D_{(CB)} =\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\\tt\to D_{(CB)} =\sqrt{(3-3)^2+(4+4)^2}\\\\\tt\to D_{(CB)} =\sqrt{( 8^2+0^2 )} \\\\\tt\to D_{(CB)} =\sqrt{65} \\\\\tt\to \boxed{\orange{\tt D_{(CB)} = \sqrt{65}\ units }}[/tex]

Hence the total perimeter will be ,

[tex]\to\tt D_{(AB)}+D_{(BC)}+D_{(CA)}\\\\\tt\to \sqrt{65}+\sqrt{65}+1 \\\\\tt\large\to\underline{\boxed{\green{\tt 1 +2\sqrt{65} \:\:units }}}[/tex]

3. A taxi cab company charges $3.00 for 1 minute and $5.50 for 6 minutes.
a) Calculate the slope. What does it mean according to the question?
b) Calculate the y-intercept. What does it mean according to the question?
c) How much would it cost for a 30-minute cab ride?
d) How far could you travel for $50?

Answers

Answer:

a) 1/2

b)2.5

c)17.5

Step-by-step explanation:

The question gives you two points on the line. From this, you can calculate the slope. Since slope is m=[tex]y_2-y_1/x_2-x_1[/tex], the work for question a is as follows:

m= 5.5-3/6-1

m=1/2 or 0.5

Now, you can use the information given to calculate the y-intercept. Use any of the two points to fill in x and y, and use the slope you just calculated to fill in for m. Fill in the equation and use algebra to isolate the variable and solve for b.

y=mx+b

3=0.5(1)+b

3-0.5=b+0.5-0.5

2.5=b

Finally, plug in all the numbers to find the answer for question c.

y=0.5x+2.5

y=0.5(30)+2.5

y=17.5

1
Type the correct answer in the box.
5 units
2 units
2 units
3 units
2 units
The area of the figure is
square units
Reset
Next

Answers

You didn't add enough information to solve this problem. Comment on this when you do.

Answer:

Is there any more information to this so I can try and help

Repost again cause spam answers came by

Answers

Answer:

I do not know if this is correct  but C?

Step-by-step explanation:

The diagram below shows vector v.
Given transformation matrix t= 1 0 0 -1 which diagram shows the application of t to v

Answers

Although the options related to your question is missing attached below is the transformation matrix

A transformation matrix alters the original coordinate system of a matrix from x, y to  x' , y' ( i.e. the inverse value of x and y )

Given transformation matrix :

[tex]T = \left[\begin{array}{ccc}1&0\\0&-1\\\end{array}\right][/tex]

   [tex]= \left[\begin{array}{ccc}1&0\\0&-1\\\end{array}\right]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex] [tex]= \left[\begin{array}{ccc}x\\-y\\\end{array}\right][/tex]

From the diagram in the question

x = -2 , y = 4

hence ; T( -2, 4 ) = ( -2, -4 )  

attached below is the transformation matrix showing the application of t to v

learn more : https://brainly.com/question/22378074

Answer:

A

Step-by-step explanation:

Edg 2021

What are the midline, amplitude, and period of this function?
у
2
1.5
1
0.5
х
-21
-11
0
2n
-O
-1
-1.5
-2
-2.5
-3
-3.5
-4
The midline is y =
The amplitude is
The period is
7T

Answers

The midline is y = -2, the amplitude is 1.5, and the period is if the because function completes one revolution in .

What is a function?

It is defined as a special type of relationship and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

From the graph:

The midline is the horizontal line about which the graph of a function oscillates

y = -2

The amplitude is the half vertical distance the function travels around the midline.

Amplitude = 1.5

The period: the distance traveled to complete the one rotation:

Period =  4π

Thus, the midline is y = -2, the amplitude is 1.5, and the period is if the because function completes one revolution in 4π

Learn more about the function here:

brainly.com/question/5245372

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Answer:

Step-by-step explanation:

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