Alex dumped out his piggy bank and there were only
nickels, dimes, and quarters.
There were three times as many dimes as nickels, and 40
more quarters than nickels.
If the total amount of money was $17.20, how many of each
type of coin were there?
"There are
nickels,
dimes, and
quarters.

Answers

Answer 1

Answer:

12 nickels

36 dimes

52 quarters

Step-by-step explanation:

Let x = no. of nickels

3x = no. of dimes

x + 40 = no. of quarters

5x = value of the nickels since each nickel is 5 cents

10(3x) = 30x = value of the dimes since each dime is 10 cents

25(x + 40) = 25x + 1000 = value of the quarters since each quarter is 25 cents

Now, 5x + 30x + 25x + 1000 = 1720     ($17.20 = 1720 cents)

60x + 1000 = 1720

60x = 720

x = 12 nickels

3x = 36 dimes

x + 40 = 52 quarters

Check:  12 nickels are worth $.60

36 dimes are worth $3.60

52 quarters are worth $13

.60 + 3.60 + 13 = 17.20


Related Questions

A new homeowner needs to determine the length of his rectangular backyard before he goes to the store for

fencing. He knows that the area of the yard is 51 square meters and that the width is 5.2 meters longer

than the length. Which equation could be solved to determine the dimensions of the backyard, where the length

is / and the width is w?

0=w2+5.2w -51

o

0=12+5.21-51

4w + 10.4 = 51

о

41 +10.4 = 51

Answers

Answer:

The equation used to solved to determine the dimensions of the backyard is 51 = 4w - 10.4

Step-by-step explanation:

As given,

The backward is rectangular in shape

Also , we know that

Area of rectangle = 2 ( Length + Breadth )

Also, given,

Breadth of the backyard = 5.2 + Length of the backyard

Let

length of the backyard = l

Breadth of the backyard = w

∴ we get

w = 5.2 + l

⇒l = w - 5.2

and

Area = 2 ( l + w)

⇒51 = 2( w - 5.2 + w)

⇒51 = 2 ( 2w - 5.2)

⇒51 = 4w - 10.4

So, the equation used to solved to determine the dimensions of the backyard is 51 = 4w - 10.4

By solving we get

4w = 51 + 10.4

⇒4w = 61.4

⇒w = [tex]\frac{61.4}{4}[/tex] = 15.35

⇒ w = 15.35

⇒ l = w - 5.2 = 15.35 - 5.2 = 10.15

⇒l = 10.15

So the dimensions of the backyard = l × b = 10.15 m × 15.35 m

You have 10 coins in your pocket. Five are Susan B. Anthony dollars, two are Kennedy half-dollars, and three are presidential dollars. You randomly
choose a coin In how many ways can choosing not a presidential dollar occur?
Kennedy
half-dollar
208080
SOLO
*1999
Susan B. Anthony
dollar
WE TRUST
O
Presidential
dollar
There are
ways you can choose not a presidential dollar.

Answers

Answer:

Im not sure about this one yet

Step-by-step explanation:

but give me a alittle and I'll be bk right away

Not choosing a presidential dollar can occur in 7 ways

Calculating Number of ways for choice

Given : Total 10 coins - 5 susan anthony dollars, 2 kennedy half dollars, 3 presidential dollars

To calculate : Number of ways through which non presidential dollar can be chosen

It can be calculated using Combination Choices

The dollar chosen is out of 7 dollars - 5 susan anthony dollars & 2 kennedy half dollars, ignoring & excluding the presidential dollars

So, number of ways = 7 c 1

= 7 ways

To learn more about Combinations, refer https://brainly.com/question/20211959?referrer=searchResults

PLS HELP!!!!!!Which of the following tables represents the relationship between the circumference and diameter of a
circle?

Answers

Answer:

itanong mo kay kapatid na arlene

It is D. If you multiply D by 3.14 and it matches the C, it is the right one. So it is D

What happens to a graph that is representative of exponential decay? The graph goes:
a.
down and to the right
c.
up and to the right
b.
down and to the left
d.
up and to the left

Answers

A. Down and to the right.. let me know if this helps!!

help me pls will mark my day no explanation needed

Answers

Answer:

2

Step-by-step explanation:

It's going 2 up and 1 across.

1) A basketball player made 13 out of every 20 free-throws. How many
free-throws does he make out of every 100 attempts?

Answers

Answer:

20*5=100

So it would be 13*5=65

Step-by-step explanation:

five yellow M&Ms for every three green how many green M&Ms if there are 95 yellow

Answers

95/5= 19
19x3= 57 green M&M’s

This was the only question I didnt understand. An explanation would be nice.

Answers

Answer:

B

Step-by-step explanation:

ac =5x

cb=7x

(5x×5x)+ (5 +7)^2 = 7x^2

25x^2+144=49x^2

x=kök 6

ac =5kok 6

(5kok6)×12÷2= 30 kök 6

Write an equivalent expression by simplifying the expression using combining like terms.

18x + 4y - 8x + 2

Answers

Answer: 10x + 4y + 2

The terms with an x are considered like terms so they could be subtracted.

What are all the ways I could factor the expression 32t - 48?

Answers

Answer:

take out 16 from both 32 and 48

Step-by-step explanation:

you'll get 16(2t-3)

Answer:

2(16t-24)

Step-by-step explanation:

2(16t-24)

32t-24

hope it's helpful ❤❤❤❤

THANK YOU.

helpppp fast get brainliest if right!!

Answers

Answer:

85%

Step-by-step explanation:

Answer:

85% of the balls pitched them.

Step-by-step explanation:

When you want to figure out a percent, you need to take the number of successful outcomes divided by the total number of outcomes. So, in this case, you would take 17/20, which is 0.85. Move the decimal place two times over to the right and you get 85, which is 85%.

I hope this helps u! :D

Help please! I will mark brainliest

Answers

Answer:

Step-by-step explanation:

∠L = 52

∠N  = 26

8) ∠M + ∠N = 180          {in trapezoid, LM // PN, co interior angles}

    ∠M +  26 = 180

              ∠M = 180 - 26

              ∠M = 154

11) ∠LPN + ∠L = 180        {in trapezoid, LM // PN, co interior angles}

     ∠LPN + 52 = 180

                ∠LPN = 180 - 52

LPN = 128

9)In ΔPAN,

∠PAN + ∠N + ∠NPA = 180 {Angle sum property}

90 + 26 + ∠NPA = 180

         116 + ∠NPA = 180

                  ∠NPA = 180 - 116

                   ∠NPA = 64

∠LPA + ∠NPA = ∠LPN

∠LPA +  64  = 128

            ∠LPA = 128 - 64

           ∠LPA = 64

10) ∠MAP = 90                    {PA ⊥ MN}

               

Answer:

I hope this will be good for u :)

5(y+2/5)=-13
what is y

Answers

Answer:

y=11/5

Step-by-step explanation:

first divide by 5 on both sides

y+2/5=-13/5

subtract 2/5 on both sides to isolate the y

y=11/5

:))

Answer:

y=-3

Step-by-step explanation:

5(y+2/5) = -13

5y+2 = -13

subtract 2 from each side

5y+2-2 = -13-2

5y = -15

divide each side by 5

5y/5 = -15/5

y=-3

check:

5(y+2/5) = -13

substitute -3 for y

5(-3)+2/5) = -13

-15+2= -13

-13 = -13

What is equivalent to 7 x 7 x 7 x 7 x7 x 7? 7 (5 as exponent), 7 (6 as exponent), 6 (7 as exponent), 7 (7 as exponent).

Answers

Answer:

7 (6 as exponent)

Step-by-step explanation:

Given the repeated product of a number to be expressed in exponential terms, we take the number as the base and the number of times it is multiplied as the exponent or power.

As such, given 7 x 7 x 7 x 7 x7 x 7

the base is 7 and since the number of 7s being multiplied is 6, the result is

7 exponent 6 which may be written as 7^6

Answer:

Step-by-step explanation:

7^6

what is 31/80 in gcse​

Answers

Answer:

it's grade 2

Step-by-step explanation:

this is because 29-40 is grade 2

Answer:

a grade 2

Step-by-step explanation:

because 29-40 marks is a grade 2 lol.

I want these answered please I don't have that much time.

Answers

Download photo math and it will let you take a picture of the equation and answer it for you

Answer:

1. -4

2.8

3.2

4.-11

5.-8

6.-7

7.12

8.-6

9.-9

10.?

11.-2

12.-4

13.-50

14.16

Step-by-step explanation:

Melissa had 54 questions wrong on her exam that had 150 questions. Each question was

worth 1 mark. What was her mark written as a percent?​

Answers

Answer:

36%

Step-by-step explanation:

54/150 is a 36%

Answer:64%

Step-by-step explanation:

Select the graph of the solution. Click until the correct graph appears.
3 x + 1 < 7

Answers

Answer:

The first one lol

Step-by-step explanation:

Describe and correct the error in graphing the system of inequalities. ​

Answers

Answer: The boundary lines are correct, but there shouldn't be any shaded region

==========================================================

Explanation:

The graph of [tex]y \le x-1[/tex] will have us graph the boundary line y = x-1, and then shade below this solid boundary line. The boundary line y = x-1 is shown as the bottom boundary line of that diagram.

The graph of [tex]y \ge x+3[/tex] involves the boundary line y = x+3, with shading above the boundary line. The graph of y = x+3 is shown as the top boundary line of that diagram.

The boundary lines are correctly graphed, but the shaded region is incorrect. Instead, there shouldn't be any shaded region. The two shaded regions mentioned in the previous paragraphs do not overlap at all, so we don't have any (x,y) point that is in both shaded regions simultaneously. Therefore, there are no solutions to this entire system.

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

Here's another reason why there's no solution region.

For each given inequality, subtract x from both sides

So [tex]y \le x-1[/tex] turns into [tex]y-x \le -1[/tex], while [tex]y \ge x+3[/tex] turns into [tex]y-x \ge 3[/tex]

Next, let z = y-x

We can replace each copy of 'y-x' with 'z' and we end up with the two inequalities [tex]z \le -1[/tex] and [tex]z \ge 3[/tex]

However, no such number is both -1 or smaller, AND 3 or larger

So there is no solution to that system involving z. Consequently, there are no solutions to the original system of inequalities.

EVELYN HAD 9 DOLLS, BUT SHE LOST 1/3RD OF THEM AT DAYCARE. HOW MANY TOTAL DOLLS WOULD EVELYN HAVE HAD IF SHE HAD NOT LOST THEM?

Answers

Answer:

Total Dolls would Evelyn have had if she had not lost them = 9 Dolls

Step-by-step explanation:

As given,

Total dolls Evelyn had = 9

Total dolls lost = [tex]\frac{1}{3}[/tex]× 9 = 3

So, Now

Evelyn had total dools after lost = 9 - 3 = 6

If she had not lost te dolls , then she had 3 dolls more

∴ we get

If she had not lost any dolls , Evelyn had total dolls = 6 + 3 = 9

So, The answer would be :

Total Dolls would Evelyn have had if she had not lost them = 9 Dolls

solve - 2/5x is less than or equal to 20

Answers

Answer:

x is less than or equal to 0

Step-by-step explanation:

- you need to multiply both sides of the inequality by 5/2

- then you reduce the numbers with the greatest common factor 5

- then you reduce the numbers with the greatest common factor 2

- any expression multiplied by 0 equals 0

- so you get x is less than or equal to 0

^^^ hope this helps! :)

Over what interval is the function in this graph constant? A. 65*10 B, 1 sxs6 C. -4 sxs1 D. -10 5-4 ​

Answers

Given:

The graph of a function.

To find:

The interval at which the graph of the function is a constant.

Solution:

From the given graph it is clear that the graph is a horizontal line and parallel to the x-axis over the interval [tex]1\leq x\leq 6[/tex].

Over the interval [tex]1\leq x\leq 6[/tex], the value of the function is constant, i.e., y=7.

It means the graph of the function is constant over the interval [1,6].

Therefore, the correct option is B.

Person who gets it correct wins brainliest! This is due is 2 minutes! Question is in the screenshot. QUESTION 2!

Answers

Answer:

Step-by-step explanation:

Cubic centimeters is multiplying by another dimension which means volume. Squared centimeters means area.

Write the equation of the line that has a slope of 10/3 and the y intercept of 12

Answers

                 y=10/3x+12

The x is after the fraction

PLEASE PLEASE PLEASE HELPPPP

Answers

Answer:

98.78π yd³

Step-by-step explanation:

°•°•°••°•°•°•°°•°•°•

PLEASE HELP GOING TO FAIL WILL GIVE BRAINLESS

Answers

Answer:

Step-by-step explanation:

I apologize if any of my answers are wrong.

For #1, WT is the same at WU, so the answer should be 7 inches

For #2, it looks like QT is just WT+QW. 7+16 is 23. Answer is 23 inches

For #3, PW is the same as QW so we can automatically assume the answer is 16 inches.

For #4, PU is the same at QT, so 23 inches

For #5, I'm pretty sure the distance between TR is the same as PT, so 8 inches for #5

For #6, PR*2 or 8*2 is 16, so 16 inches

For #7, 14 inches

For #8, 19 inches

which graph shows u + v for the given vectors u and v

Answers

Answer:

its the first graph : A

Step-by-step explanation:

Question 4(Multiple Choice Worth 4 points)
(05.05 MC)

Make a conditional relative frequency table for the columns of movie type. Determine which statement has the strongest association.


Do you prefer watching a comedy, a drama, or a thriller movie?
Comedy Drama Thriller Row Totals
Males 40 23 56 119
Females 21 45 18 84
Column Totals 61 68 74 203
Females prefer drama movies.
Males prefer comedy movies.
Males prefer thriller movies.
Females prefer comedy movies.

Answers

Answer:

C. Males Prefer thriller movies. I'm pretty sure. I'd need the photo.

Step-by-step explanation:

If you look at the graph you'll see that 56 males like thriller while only 18 of women like it. These two data points have a difference of 38, making it the largest difference than any other category, therefore, its the strongest.  

The females who prefer drama movies has the strongest association option (A) Females who prefer drama movies is correct.

What is a conditional relative frequency?

It is defined as the frequency that can be evaluated by the two-way frequency table. Usually, we can obtain this frequency by dividing the frequency that is not in the total the equency cell to total frequency.

We have:

A conditional relative frequency is given:

From the data:

Probability of Females preferring drama movies :

= n(Females who prefer drama)/n(females )

= 45/84 = 0.53

Probability of  Males preferring comedy movies :

n(males who prefer comedy) / n(males)

= 40/119 = 0.33

The probability of Males prefers thriller movies.

n(males who prefer prefer thriller ) / n(males)

= 56/119 = 0.47

The probability of Females prefers thriller movies.

n(females who prefer prefer thriller ) / n(females)

= 18/84 = 0.21

Thus, the females who prefer drama movies has the strongest association option (A) Females who prefer drama movies is correct.

Learn more about the conditional relative frequency here:

brainly.com/question/8358304

#SPJ5

to determine the students overall test score for the semester, Ms Lopez throws out the lowest test score and takes the average for the remaining test scores. Picture in the following test scores in Ms. Lopez class this semester

Answers

Answer:

62+78+83+84+93=400marks. 400÷5×100%=8000.then we can ignore two zeros by decimal and you will get 80.0%

WILL GIVE BRAINLIEST TO CORRECT ANSWER
Which best describes the association shown in the scatter plot?
A. no association
B. strong positive
C. moderate positive
D. strong negative

Answers

Answer:

D strong negative

Step-by-step explanation:

Other Questions
Help please the problem is in the picture below. The equation p = 5x2 + 100x 250 models the profit p in dollars from selling pizza, where x is the price per pizza in dollars. What is the highest price you can charge per pizza to profit $100? plzzzzzzzzzzzzzzzzzzz helppppppppppppp meeeeeeeeee HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP The bugs areto find their food.strugglingreleasedhurryingequipped Please Helpa in a complete sentence, describe the angle relationship in the diagram Humans depend on ecosystems for ecosystem services andresources. For example, this river ecosystem provides water, fish,and a place to swim. The forest ecosystem provides wood, shade,and erosion control. Choose a resource and describe the possibleeffects of its use on society and on ecosystems throughout its lifecycle. The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 8,300 miles. What proportion of these tires last between 40,000 and 45,000 miles It is common to mix polar solvents (e.g., acetone) with non-polar solvents (e.g., hexane) to obtain an eluting solvent of intermediate polarity. Would it be appropriate to use a water-DMSO mixture A light bulb consumes 3600 watt hours per day how long does it take to consume 15300 watt-hours Who are they who have lived in idleness?Northern soldiersSouthern slaversSouthern enslaved peopleNow Mr Lincoln don't you think you ought to stop this thing and make them do the same by the colored men. They have lived in idleness all their lives on stolen labor, but are so furious because [colored people] are proving themselves to be men, such as have come away and got some education. It must not be so. PLS HELP I WILL GIVE BRAINLYEST!!Paragraph TwoNoah began racing go-karts when he was just six years old. Noah has traveled to other states to race, win, and finish in the top five, an impressive accomplishment for anyone but especially for a young driver. He now races a 1934 Ford Legends Coupe, a car that weighs 1,000 pounds and goes faster than 100 miles per hour. Noah regularly competes against drivers who are three times older than he is, but he does not let that intimidate him. He explained in one news article, "I have been racing against older people all my life. When you strap on a helmet, you are no longer a 13-year-old kid, you are a racecar driver. The other drivers don't treat me like a kid. They treat me the same as the other drivers on the track." He has the nickname "Little Gator" partly because of his size and partly because of Gatorland's sponsorship over the last several years.In paragraph 2, Noah says, "I have been racing against older people all my life. When you strap on a helmet, you are no longer a 13-year-old kid, you are a racecar driver."What is the implicit meaning of his words? (5 points)Group of answer choicesI am very talented because I am able to race against adults.Everyone on the racetrack is equal.All racecar drivers have to wear helmets regardless of age.Older racers are embarrassed to compete against a kid. Show that, with appropriate coefficients, the two reactions can be summed to give the overall oxidation of SO2 by O2 to give SO3. Give the equation for the final overall oxidation of SO2 by O2 to give SO3 as your answer. Express your answer as a chemical equation. Identify all of the phases in your answer. Solve the system of linear equations by substitution. Check your solution. HELP ME PLEASE I WILL BE SOOOO THANKFUL Type the missing number in this sequence:2, 8, 32, 128, ___ , 2,048 In algebra, what is substitution? eek helpppp ill give brainliestt Which statement best describes members of the same species?O They possess identical numbers of cells in their bodiesO They possess identical traits and physical appearancesO They are able to breed with each other and produce offspring of different speciesThey are able to breed with each other and produce offspring of the same species Find the domain and range of the following graph. 2/3p+1/51+5/6psolve