a bag contains 18 coins consisting of quarters and dimes the total value of the coins is $2.85 what system of equations can be used to determine the number of quarters given the numbers of Dimes date in the back ​

Answer:

[tex]y=-\frac{1}{4}x+\frac{9}4}[/tex]

Step-by-step explanation:

Answer:

Step-by-step explanation:

(x₁ , y₁) = (3, -3) & (x₂ , y₂) = (1 , 2)

[tex]slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

        [tex]= \frac{2-3}{1-[-3]}\\\\= \frac{-1}{1+3}\\\\=\frac{-1}{4}[/tex]

m = (-1/4)

y - y₁ = m(x - x₁)

[tex]y - 3 = \frac{-1}{4}(x - [-3])\\\\y - 3 = \frac{-1}{4} (x + 3)\\\\y - 3 = \frac{-1}{4}x-\frac{3}{4}\\\\ y = \frac{-1}{4}x-\frac{3}{4} + 3\\\\ y =\frac{-1}{4}x+\frac{-3+12}{4}\\\\ y =\frac{-1}{4}x+\frac{9}{4}[/tex]

Answer: No

Step-by-step explanation:

An arithmetic sequence is one where the same number is being added to the number before it. For example, 2, 4, 6, 8..., where 2 is being added to each number.

In this case, however, the number being added is not consistent with this pattern. Between 5 and 9, the difference is 4 and between 9 and 14, the difference is 5, and so forth. This pattern does not follow the rules of an arithemtic sequence.

Answer:

105 frames

Step-by-step explanation:

Given that:

At 0 seconds, the video had already played 190 frames and there are 25 frames being played per second.

When the time is equal to [tex]3 \dfrac{2}{5}[/tex], the number of frames that are already being played is:

[tex]= 3 \dfrac{2}{5} \times 25[/tex]

[tex]= \dfrac{17}{5} \times 25[/tex]

= 17 × 5

= 85 frames.

But recall that, the frames had already played 190 frames at 0 seconds, then the number of frames that had already been played when the time is equal to [tex]3 \dfrac{2}{5}[/tex] is;

=(190 - 85) frames

= 105 frames

Answer:

105

Step-by-step explanation:

khan academy <333

Answer:

[tex]y=6x-10[/tex]

Step-by-step explanation:

First, we can find the slope using the two given points.

[tex]m=\frac{y2-y1}{x2-x1}=\frac{-22-8}{-2-3}=\frac{-30}{-5}=6[/tex]

Then, we can use the slope we just found and one of the given points to find the y-intercept.

[tex]y=mx+b\\y=6x+b\\8=6(3)+b\\8=18+b\\b=-10[/tex]

And we can put our equation together.

[tex]y=6x-10[/tex]

Hope this helps!

Answer: I think it is 40%

Answer:

40.384615384615%

Step-by-step explanation:

just round so i think 40. not sure hope this helps. sorry if wrong..

Answer:

A. X-y=6 and x=y+6 I'm pretty sure

Answer:

c

Step-by-step explanation:

Answer:

54 monthly payments

Step-by-step explanation:

the total number of payments = 4.5 years x 12 payments per year = 54 monthly payments

each monthly payment = loan / PV annuity factor

monthly payment = $19,000 / 45.6139 = $416.54

Answer:

The answer is 14 and 9

Step-by-step explanation:

Answer:

[tex]answer14[/tex]

hope it will be helpful to you

Answer:

A is the correct answer.

Step-by-step explanation:

Answer:

All terminating and repeating decimals are not rational numbers. For example, pi is a non-terminating & irrational number.

Step-by-step explanation:

The given statement "Are all terminating and repeating decimals rational numbers? Expla" is true.

Yes, all terminating and repeating decimals are rational numbers. A

rational number is defined as any number that can be expressed as a ratio of two integers, with the denominator not equal to zero.

Terminating decimals are those decimals that end after a finite number of digits.

For example, 0.75 is a terminating decimal because it ends after two digits. To show that such decimals are rational,

We can rewrite the decimal as a fraction.

0.75 can be expressed as 75/100 or simplified to 3/4.

Since both the numerator and denominator are integers, 0.75 is a rational number.

Now

Repeating decimals are those decimals that have a repeating pattern of digits after the decimal point.

For example, 0.3333... is a repeating decimal because the digit 3 repeats infinitely.

To show that repeating decimals are rational, we can use a similar approach to terminating decimals.

Take 0.3333... as an example.

We can represent this decimal as an infinite series:

0.3333... = 3/10¹ + 3/10² + 3/10³+ ...

This can be simplified using the formula for the sum of an infinite geometric series:

0.3333... = 3/10¹ + 3/10² + 3/10³+ ...

               = (3/10)/( 1 - 1/10)               (by sum of infinite geometric serires)

               = 3/9

Since 3/9 can be simplified to 1/3, we can conclude that 0.3333... is a rational number.

Thus, all terminating and repeating decimals are rational numbers because they can be expressed as a ratio of two integers.

To learn more about sequence and series visit:

brainly.com/question/12373434

#SPJ6

Answer:

7.56

Step-by-step explanation:

i did was 49.56 - 42,00 to see how much tip they did.

Answer:

[tex]10 {}^{5} = 1000000[/tex]

So,

4.6*1000000

Therefore, 46000000

Answer:

40m

Steps:

1000cm=10m

72m:18=10:x

x=(10*72)/18 = 40

Hope this helps, have a great day

Answer: 44000

Step-by-step explanation:

From the question, we are informed that the population of Queens increased by 16,075.

Brooklyn's population increased by 11,870 more than the population increase of Queens. This means that Brooklyn's population will be:

= 16075 + 11870

= 27945

The total combined population increase of Queens and Brooklyn from 2010 to 2011 will then be:

= 16075 + 27945

Estimating 16075 gives 16000

Estimating 27945 gives 28000

Adding then together equals

16000 + 28000 = 44000

Answer:

Square

Step-by-step explanation:

the quadrilateral obtained by joining the mid points of adjacent sides of a square is a square

Answer:

1 I think its 1.267000000

Step-by-step explanation:

Answer:

There are 7 teams in the league

Step-by-step explanation:

Given that the number of games is given by:

[tex]G(n) = \frac{(n^2-n)}{2}[/tex]

The equation will be used to determine the number of games. As we already know, that 21 games are scheduled which means G(n) is 21 so we have to find n when G(n) is 21

Putting this mathematically

[tex]21 = \frac{n^2-n}{2}[/tex]

Multiplying equation by 2

[tex]2*21 = 2*\frac{n^2-n}{2}\\42 = n^2-n\\n^2-n-42 = 0\\n^2-7n+6n-42 = 0\\n(n-7)+6(n-7) = 0\\(n-7)(n+6)=0\\n-7 = 0 => n=7\\n+6=0 => n=-6[/tex]

As the number of teams cannot be negative, the number of teams in league are 7.

Hence,

There are 7 teams in the league

Answer:

C

Step-by-step explanation:

the square root of 1/4 is 0.5 which is positive, rational, and between 0 and 1

Answer:

The answer is sqaure root of 1/4

Step-by-step explanation:

Your Welcome Plz Mark Brainliest. I got this because the sqaure root of 1/4 is 0.5 which is bewteen 1 and 0 and it is positive and rational! If you are wondering how to get the sqaure root then here is the steps

1. Simple deduction 1/4 in 1 to the power of 2 and 2 to the power of 2

2.We can simplfy this to 1/2 to the power of 2

3. This will equal 1/2 which is also equal to 0.5

Plz condsierdate giving Brainliest Thanks :)

Answer:

(2.4)(10)−4

=20

Step-by-step explanation:

Answer:

20x^11

Step-by-step explanation:

Why? because you mutiply the 4 nd 5 to get 20, then you multuply the x's, whihc if they have exponents, tou just add the xponents, so 6+5=11.

Answer:

20[tex]x^{11}[/tex]

Step-by-step explanation:

When you multiply exponents, you add the exponent numbers together.

4x * 5x = 20x

5 + 6 = 11

Answer:

Negative means focused on what is bad or lacking. A negative ad tells you bad things about the competition. A negative person loves to complain. In math, a negative number is less than zero.

Step-by-step explanation:

Answer:

the answer is [tex]y=-x+5[/tex]

Step-by-step explanation:

I hope this helps! :)

Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.

Answer:

2 m

Step-by-step explanation:

The length and width of a rectangular garden is 10 m and 3 m respectively.

He will double the area of the garden by adding the same number of meters to both the length and the width. Area = 2(10 × 3) = 60 m².

Let x is amount of increase in the length and width such that area will be :

(10+x)(3+x) =60

30+10x+3x+x² = 60

x²+13x-30=0

x²+15x-2x-30=0

x(x+15)-2(x+15)=0

x=2 and x = -15

Neglecting negative value, he aded 2 m toboth length and width of the garden.

Answer:

149 degrees

Step-by-step explanation:

Since m and n are parallel you need to remember the rules of transversals, this means that <1 and <2 are corresponding. Corresponding angles are always congruent, so we can solve for x by setting them equal to each other.

[tex]8x-1=7x+3[/tex]

First, move the variables to one side, I will move them both to the right, but remember you can do it on either side. To do this subtract 7x from both sides

[tex]8x-1-7x=7x+3-7x[/tex], then simplify

[tex]x-1=3[/tex]

Next, add 1 to both sides to isolate the variable

[tex]x-1+1=3+1[/tex], then simplify

[tex]x=4[/tex]

Now that you know what x equals solve for angle 1, to do this plug 4 in for x in the original equation

[tex]8(4)-1=31[/tex]

Finally, you can solve for <3 because <1 and <3 are supplementary. So to solve add both and set them equal to 180, in this equation let x stand for <3. [tex]180=31+x[/tex], then subtract 31 from both sides [tex]180-31=31+x-31[/tex] and simplify, [tex]149=x[/tex]. So angle 3 is equal to 149.

Answer:

2880 if u multiply

Step-by-step explanation:

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Given :

The cooper family owns a luxery sedan and a compact car the fuel tank capacity for the luxury seden is 22.45 gallon and of the compact car is 8.7 gallons.

To Find :

The difference in the fuel tank of the two car.

Solution :

Capacity of sedan, S = 22.45 gallons.

Capacity of compact car, C = 8.70 gallons.

Difference in the capacity :

D = S - C

D = 22.45 - 8.70 gallons

D = 13.75 gallons

Therefore, difference in the fuel tank of the two car is 13.75 gallons.

Hence, this is the required solution.

Answer:

0.25

Step-by-step explanation:

Here, we want to find the constant of proportionality that relates total cost in dollars to number of tickets purchased

Mathematically, that will be ;

7.50/30 = 1/4 = 0.25

Kindly note we can select any pair

The ratio of both at any point in time is constant