Solve this math problem: a bag of coins contains nickels, dimes, and quarters. there are a total of 21 coins in the bag, and the total amount of money in the bag is $3.00. there is one more dime than there are nickels. how many dimes, nickels, and quarters are in the bag?

Answers

Answer 1
Solve this math problem: a bag of coins contains nickels, dimes, and quarters. there are a total of 21 coins in the bag, and the total amount of money in the bag is $3.00. there is one more dime than there are nickels. how many dimes, nickels, and quarters are in the bag?
Solve This Math Problem: A Bag Of Coins Contains Nickels, Dimes, And Quarters. There Are A Total Of 21
Answer 2

Answer: There are 6 nickels, 7 dimes and 8 quarters in the bag.


Step-by-step explanation:  Given that the bag contains coins of nickels, dimes and quarters. There are total 21 coins in the bag and number of dimes is one more than the number of nickels.

Let 'x' be the number of nickels in the bag.

So, number of dimes will be (x+1) and number of quarters will be (21-x-x-1) i.e., (20-2x).

Since there are total $3.00 amount of money in the bag, so

[tex]0.05x+0.10(x+1)+0.25(20-2x)=3\\\\\Rightarrow\dfrac{x}{20}+\dfrac{x+1}{10}+\dfrac{20-2x}{4}=3\\\\\Rightarrow \dfrac{x+2x+2+100-10x}{20}=3\\\\\Rightarrow -7x+102=60\\\\\Rightarrow 7x=42\\\\\Rightarrow x=6.[/tex]

Therefore, number of nickels = 6, number of dimes = 6+1 = 7  and number of quarters = 20-2×6 = 8.

Thus, there are 6 nickels, 7 dimes and 8 quarters in the bag.



Related Questions

There are currently 58 million cars in a certain country, increasing exponentially by 5.5% annually. how many years will it take for this country to have 79 million cars? round to the nearest year.

Answers

79/58=e^0.055t
1.3620690=e^0.055t
ln 1.3620690=ln e^0.055t=0.055t ln e=0.055t
t=5.6183 years
☺☺☺☺

Segment AB is rotated to form ​ A'B'¯¯¯¯¯¯¯ ​. The coordinates of point A are (1, 5) and the coordinates of point B are (−6, 4) . Which clockwise rotation around the origin results in the transformation of ​ AB¯¯¯¯¯ ​ to form​ A'B'¯¯¯¯¯¯¯ ​?

Answers

It is rotated 180 degrees, and it doesn't matter wether clockwise or counterclockwise. 180 degrees results in the same thing both ways

The correct answer is 180 degrees.

Each of ten tickets is marked with a different number from 1 to 10 and put in a box. if you draw a ticket from the box, what is the probability that you will draw 2, 8, or 4?

Answers

10% would be you chance of get one of those numbers but together its 30%

Answer: [tex]\dfrac{3}{10}[/tex]

Step-by-step explanation:

Given : Each of ten tickets is marked with a different number from 1 to 10 and put in a box.

i.e. The total number of outcomes : 10

Favorable outcomes : 2, 8, or 4

i.e. Number of favorable outcomes = 3

Now, the probability that you will draw 2, 8, or 4 is given by :-

[tex]=\dfrac{\text{Number of favorable outcomes}}{\text{Total outcomes}}\dfrac{3}{10}[/tex]

Which of the sets of ordered pairs represents a function? (4 points)

A = {(−4, 5), (1, −1), (2, −2), (2, 3)}
B = {(2, 2), (3, −2), (9, 3), (9, −3)}

you can do both or neither as well THX

Answers

neither set of ordered pairs here is a function

What is the exact value of cos theta = squareroot 2 over 2?

Answers

ok, so you want us to find theta when [tex]cos(\theta)=\frac{\sqrt{2}}{2}[/tex]
we know from our unit circle that when the angle is 45 degrees, cos(45°)=sin(45°)=[tex]\frac{\sqrt{2}}{2}[/tex]
also we can find this by the special 45-45-90 triangle


when Θ=45°, cos(Θ)=[tex]\frac{\sqrt{2}}{2}[/tex]

What is the x-intercept of a line that passes through the point (3, 4) and has a slope of 2?

Answers

Y-int = -2
work attached 

PLEASE HELP!!!! WILL MARK THE BRAINLIST!!!! PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE


a) The shoe store manager borrowed $17,000.00 from the bank to purchase 1000 pairs of shoes. The bank charges a simple interest rate of 5% per year on a loan to a business. If it takes 3 years to pay back the loan and interest, what is the total amount of interest that the shoe store will pay? (2 points)


b) What is the total amount, including interest, that the shoe store must pay on the loan? (2 points)


c) How could you use estimation to determine if your answer is reasonable? Explain. (2 points)

Answers

A) 17000*(1+(0.05*3) = 19550

19550-1700 = $2,550 total interest


B)  $19,550 total amount


C) multiply 5 by 3  = 15 than multiply by 17 = 17 * 15 = 255 , then make it a thousands amount by adding a zero at the end


Answer:

A)

p = 17000

r = 5% or 0.05

t = 3

Simple interest formula = p x r x t

Interest paid in 3 years = [tex]17000\times0.05\times3=2550[/tex] dollars

B)

Total amount to be paid = [tex]17000+2550=19550[/tex] dollars

C)

You can first multiply the years and rate that is 5 and 3 to make 15. Then you can multiply by 17. Then put proper decimals as per the values.

Please help with these questions thank you.

Answers

1.D
2. B
3.A
these should be correct

What is the value of N?

-10= N over -0.2

Answers

The answer would be N= -10.2

PLZ HELPP ME WITH THIS MATH PROBLEM

Answers

(fog)(x) = f(g(x))

= (1 - 5x^2)^3, all real numbers

answer is B.

The total number of people at a football game was 5600. field-side tickets were 40 dollars and end-zone tickets were 20 dollars. if the total amount of money received for the tickets was 132000 how many of each kind of ticket were sold.

Answers

There were 6600 endzone tickets sold and 165 field-side tickets sold.

Four people are painting a house. Zachary paints 1/5 of the house, Alyssa paints 33% of the house, Chloe paints 0.3 of the house, and Nicholas paints 0.17 of the house. Which choice lists the people in order from least to greatest by the amount of the house each painted?

Answers

Nicholas Zachery Chloe Alyssa

Answer:

Nicholas, Zachary, Chloe, Alyssa.

Step-by-step explanation:

Given that Four people are painting a house. Zachary paints 1/5 of the house, Alyssa paints 33% of the house, Chloe paints 0.3 of the house, and Nicholas paints 0.17 of the house.

As such we cannot compare their works to order from least to greatest

Hence we can convert each portion into a decimal thus enabling comparison easier.

Zachary paints [tex]\frac{1}{5} =0.20[/tex] of the house

Alyssa paints [tex]33%=\frac{33}{100} =0.33[/tex] of the house

Chloe paints 0.3 of the house and

Nicholas paints 0.17 of the house.

In ascending order these can be written as

0.17, 0.2, 0.3, 0.33

Hence Nicholas, Zachary, Chloe, Alyssa.



Given: -7x < -21.

Choose the solution set.
A. {x | x < -3}
B. {x | x > -3}
C. {x | x < 3}
D. {x | x > 3}

Answers


[tex] - 7x < - 21[/tex]
Divide both sides by - 7. Switch the direction of the inequality when dividing by a negative number.
[tex]x > 3[/tex]
The answer is D.

The function y = h(x) is defined as follows:



h(1) =
and h(4) =

Answers

h(1) = 1^3 = 1   (x^3 for 1<=x<=3)
h(4) = 5             (5 for x >3)
 
hope it helps 

Math Help??


What is the value of X?

Answers

Heres an example i dont have the anwser to your question tho Hope i helped(1) x + 2y = 4 

(2) 5x + y + 15 = 3x - 3y + 23

solve this inequality 2(4x-3)≥-3(3x)+5x?

Answers

the first option, x is greater than and equals to 0.5

Answer:

x ≥0.5

Step-by-step explanation:

Given : 2(4x-3)≥-3(3x)+5x.

To find : solve this inequality.

Solution : We have given that

2(4x-3)≥-3(3x)+5x.

Distributes 2 over (4x-3) and -3 over 3x.

8x - 6 ≥ -9x + 5x .

8x - 6 ≥ -4x .

On adding both side by 4x

8x + 4x - 6 ≥ 0 .

12 x - 6 ≥ 0

On adding both sides by 6.

12 x ≥ 6.

On dividing both sides by 12.

x ≥ [tex]\frac{6}{12}[/tex] .

x ≥ [tex]\frac{1}{2}[/tex] .

x ≥0.5.

Therefore, x ≥0.5

i need someones help please?

Answers

y = mx + b

m = slope

plug in 1 and -7 to it's respective places

y (-7) = -2/3(x + 1)

D is your answer

hope this helps


Hey there!

The answer would be y+7= -2/3(x-1)

Hope this helps!

The point MegaMarket sold 450 organic pears last season. this season they only sold 360 What was the percent decrease in sales

Answers

First, you would need to determine the difference between last season's pear sales and this season's pear sales.  
450 - 360 = 90

Next, you would need to create an equation to determine what percentage 90 is of 450. Let x represent the unknown sales decrease percentage. 
[tex] \frac{90}{450} [/tex] = [tex] \frac{x}{100} [/tex]

Cross multiply. 
450x = 9,000

Now, all you would need to do is isolate the x. To do this, you would divide both sides of the equal sign by 450. 
x = 20
x = 20%

The percent decrease was 20%.

I hope this helps!


n Monday, Elsbeth’s bank account balance was -$16.75. On Tuesday, she deposited a check for $5.72. On Thursday, she deposited $16.75. What is her new balance? -16.75 + (5.72 + 16.75) Use the commutative property to get: -16.75 + (16.75 + 5.72) Use the associative property to get: (-16.75 + 16.75) + 5.72 On Friday, Elsbeth deposited her pay check for $872.56. What was the account’s final total? -$866.84 $878.28 $895.03 $903.10

Answers

Start by writing out the costs; 

-$16.75+($5.72+16.75) 
=5.72 

$5.72 + $872.56= 878.28

Hope I helped :) 

Answer:

Option B. $878.28

Step-by-step explanation:

On Monday, Elsbeth's bank account balance was =  $-16.75

She deposited a check = $5.72

On Thursday, she deposited = $16.75

Her new balance = -16.75+( 5.72 + 16.75)

                            = $5.72

On Friday Elsbeth deposited her pay check for = $872.56

The account's final total = 872.56 + 5.72 = $878.28

Elsbeth's account's final total was $878.28.

Option B. $878.28.

Find the sum of all numbers below 1000 that are divisible by 3 or 5

Answers

First of all, stop thinking on the number 10001000 and turn your attention to the number 990990 instead. If you solve the problem for 990990 you just have to add 993,995,996993,995,996 & 999999 to it for the final answer. This sum is (a)=3983(a)=3983

Count all the #s divisible by 33: From 33... to 990990 there are 330330 terms. The sum is 330(990+3)/2330(990+3)/2, so (b)=163845(b)=163845

Count all the #s divisible by 55: From 55... to 990990 there are 198198 terms. The sum is 198(990+5)/2198(990+5)/2, so (c)=98505(c)=98505

Now, the GCD (greatest common divisor) of 33 & 55 is 11, so the LCM (least common multiple) should be 3×5=153×5=15.

This means every number that divides by 1515 was counted twice, and it should be done only once. Because of this, you have an extra set of numbers started with 1515 all the way to 990990 that has to be removed from (b)&(c).

Then, from 1515... to 990990 there are 6666 terms and their sum is 66(990+15)/266(990+15)/2, so (d)=33165(d)=33165

The answer for the problem is: (a)+(b)+(c)−(d)=233168(a)+(b)+(c)−(d)=233168

Simple but very fun problem.

Merry and pippin were working on a project in carpentry class. they needed to cut 4 lengths of 1 5/8 feet from a board. how long must the board be to allow this?

Answers

Attached the solution and work.

Answer:

Hence, the length of board is:

6.5 feet

Step-by-step explanation:

Merry and pippin were working on a project in carpentry class.

They needed to cut 4 lengths of 1 5/8 feet from a board.

That means each of the  piece  is of length 1 5/8 feet which could be written in fraction as:

[tex]1\frac{5}{8}=\dfrac{13}{8} feet[/tex]

Hence, the otal length of the board is addition of length of each board.

i.e.

[tex]\dfrac{13}{8}+\dfrac{13}{8}+\dfrac{13}{8}+\dfrac{13}{8}=4\times \dfrac{13}{8}=\dfrac{13}{2}feet=6.5feet[/tex]

Hence, the length of board is:

6.5 feet

What is the volume if something measures 6.2 cm x 13.7 cm x 26.9 cm?

Answers

2284.886 cubic centimeter.

The calculated volume is 2284.886 cubic centimeters.

The volume of a rectangular prism (or box) is calculated using the formula:

Volume = length x width x height

For the given measurements:

Length (l) = 6.2 cmWidth (w) = 13.7 cmHeight (h) = 26.9 cm

Plug the values into the formula:

Volume = 6.2 cm x 13.7 cm x 26.9 cm

First, calculate the product of the length and width:

6.2 cm x 13.7 cm = 84.94 cm²

Next, multiply this result by the height:

84.94 cm² x 26.9 cm = 2284.886 cm³

Therefore, the volume of the object is 2284.886 cubic centimeters.

Find the 31st term of the following sequence.

9, 15, 21, ...

Answers

Notice that the above sequence is arithmetic because the common difference: d is constant.

d = second term - first term.

= 15 - 9

= 6

The general term of an arithmetic sequence is,

a_{n} =a_{1} +(n-1)d

Where , nth term = [tex] a_{n} [/tex]

[tex] a_{1} [/tex] = First term

and d = common difference.

The given sequence is: 9, 15, 21, ...

Here a_{1} = 9,

d = 6

We need to find the 31st term. So, n = 31.

Next step is to plug in these values in the above formula. Therefore,

[tex] a_{31} =9 +(31-1)*6 [/tex]

= 9 + 30* 6

= 9 + 180

= 189

So, 31st term of this sequence is 189.

Hope this helps you.

Answer:

189

Step-by-step explanation:

Estimate the decimal factors, then multiply to estimate the product.

1. 5.3 rounded to the nearest whole number is ____ .

2. 7.9 rounded to the nearest whole number is ____ .
3. (5.3)(7.9) ≈ ____ .

Answers

1) 5
2) 8
3) you can easily look that up i wouldn’t know it off the top of my head

Answer:

1. 5

2. 8

3. 40

Step-by-step explanation: So rounding the factors is an easy way to estimate the product of 5.3 and 7.9.

The real answer is 41.87 and 40 is a reasonable approximation, Your welcome.



Which of the following properties is 5(3 + 2) = 15 + 10 an example of?
associative property
commutative property
multiplicative identity
distributive property

Answers

It's the distributive property. It takes the equation, 15+10 and finds the greatest common factor of 5. it divides both numbers by 5 and puts the 5 outside of the parentheses.

Answer: Distributive property

Step-by-step explanation:

Associative property states that either in addition or multiplication we can changes the position of parenthesis.

That is, a.(b.c) = (a.b).c  or  a+(b+c) = (a+b)+c

Commutative property states that in addition or multiplication we can change the order.

That is, a.b = b.a or a+b = b+a

Multiplicative identity is an element that gives the same number after multiplication.

That is, a × 1/a = 1 ⇒ 1/a is the multiplicative identity of a.

Distributive property lets us multiply a sum by multiplying each addend separately and then add the products.

That is, a(b+c) = a.b + a.c

Thus, it is clear that ,

5(3 + 2) = 5× 3+ 5×2 = 15 + 10  is the example of distributive property.

The relation of this set of points is a function. True or false.

{(−2, 6), (4, 5), (3, −3), (6, 9), (4, −4)}

Question 1 options:
True
False
Save

Answers

Just graph it... Firstly though, do you know what a function is?
Google linear function, parabolic function, exponential function etc. to get familiar with what a function looks like.

Firstly, no function that I know has
(4, 5) and (4, -4) where there are two y coordinates for 1 x coordinate.
It is not linear, parabolic, or exponential, it could be some other type of function. But assuming you're in high school i'd say its safe to bet the answer is FALSE.

The table below represents the distance a person runs as a function of time:
Time distance meters
x f(x)
10 60
13 78
16 96
19 114

he average rate of change of the function between x = 10 to x = 16 is m/s and represents the person's speed. (3 points)

Answers

The given data is

  x   f(x)
---- ------
10   60
13   78
16   96
19   114

f(x) =  distance, m
x = time, s

Between x = 10 to x = 16,
f(x) varies by 96 - 60 = 36 m,
x vaires by 16 - 10 = 6 s.

The average speed is
v = (36 m)/(6 s) = 6 m/s.

Answer: 6 m/s

which ordered pair is a solution of the equation y=x-4

Answers

the answer would be y=-4 and x=4, so pick which ever number/letter has this answer.

Answer:

Step-by-step explanation:

y = x - 4

there are so many ordered pairs which are the solution of the given equation.

for example,

x = 0, y = -4

x = 1 , y = -3

x = 2, y = -2

x = 3, y = -1

x = 4, y = 0

x = - 1, y = - 5

x = - 2, y = - 6

x = - 3, y = - 7

x = - 4, y = - 8

which blood type was donates by the largest percent of people?

Answers

The answer is o+ Hope this helped.

You were assigned to read 5⁄8 of your book. how many sixteenths is that? fraction

Answers

5/8 = 10/16

You just multiply the numerator and the denominator by 2

Hope I helped :)
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