In a collection of dimes and nickels, the number of dimes is five less than three times the number of nickels. The value of the collection is $5.80.Let D represent the number of dimes and N represent the number of nickels. You need to know how many of each type of coin there is. Make "LET" statements and write a system of equations to model this situation. Check your answers.

Answers

Answer 1

Answer:

D= 3N-5

0.10D+0.05N=5.80

Step-by-step explanation:

So, Let D represents the number of dimes

N represents the number of nickels.

For the given statement "The number of dimes is 5 less than 3 times the N"

So, we could set up equation as

D=3N-5

Now, for the statement "The value of collection is $5.80"

So, we can set up equation for this as (please remember 1 dime is same as $0.10 and 1 nickel is same as $0.05)

0.10D+0.05N=5.80


Related Questions


Which expression is the simplest form of
(x4/7)^7

Answers

Answer:

7

Step-by-step explanation:

choose all statements that show correct reasoning for finding 15 divided by 2/9

Answers

Answer:

The second and the last options.

Step-by-step explanation:

15/ 2/9 =67.5 Solve the original problem

15*2/9 =3.33333333333

15*9/2 =67.5

(15* 1/9) /2=0.833333333333333

15*9* 1/2 =67.5

Answer:

b and d

Step-by-step explanation:

please answer please answer thank you

Answers

Answer:

367.62 in³

Step-by-step explanation:

The volume of a sphere is V = (4/3)πr³.  

Here, that volume of the whole sphere is V = (4/3)(3.14)(5.6 in)³, or

V = 735.25 in³

A 'hemisphere' is half a sphere.  Thus, the volume of each hemisphere shown here is

735.25 in³

---------------- = 367.62 in³     This just about matches the first answer choice.

        2

b. For
y = 6x + (-2),
what is y when
X=-1

Answers

Answer:

y=-8

Step-by-step explanation:

y=6x+(-2)

y=6(-1)+(-2)

y=-6+(-2)

y=-8

Hope this helps !! If you got any questions about it lmk

Help picture shown !!!! please.

Answers

Answer:

x=266/41

Step-by-step explanation:

1ft 7in/3ft 5 in=x/40

or,12in+7in/36+5=x/40

or,19in/41in=x/40

or,19*40/41=x

•°•x=266/41

MS.Robertson owns a large daycare center. she is required to have 1 supervisor for every 4 trainees. if she currently has 2 supervisors and 20 traineess what is the minimun number of additional supervisors she most hire?

Answers

Answer:

She needs a minimum of 5 supivisors.

Step-by-step explanation:

Answer: this isn’t my solution/ your question but I think this can help. All you have to do is substitute the information here for your information.

Hopefully this helps

Patty has 817 marbles. She gave away 529 of her marbles. How many marbles doe she have left? 312 marbles, 298 marbles, or 288 marbles.​

Answers

Answer:

288 because you just subtract 529 from 817

Step-by-step explanation:

FREE 9 = Tucson


...



..

Answers

Answer:

Tuscon. btw DIE MAX!

Step-by-step explanation:

Answer:yo the rule is

R% x P x T

which in this question is:

r%= 9%

p= 630

t=8

so

630 x 8 x 9% = 453.6

that's the final answer and in order to make sure make

630+453.6=1083.6

Step-by-step explanation:

The perimeter of this rectangle is 156 cm.
What is the length and width of the
rectangle?
2x + 1
3x + 2

Answers

Answer:

x = 15

Therefore, the length and width are 31 and 47.

Step-by-step explanation:

Perimeter = (2x + 1) + (2x + 1) + (3x + 2) + (3x + 2) = 156

Simplified,

10x + 6 = 156

Subtract 6 from both sides, then divide by 10.

10x = 150

x = 15

To find the length and width, substitute 15 (the value of x) into the individual equations.

2(15) + 1 = 31

3(15) + 2 = 47

300% of 25$ i need a real answer

Answers

Answer: 75
Explanation:
300% = 3.00
So
3*25
=75

Answer:

75

Step-by-step explanation:

300% of 25 = [tex]\frac{300}{100}*25[/tex]

                   = 3 * 25

                  = 75

Which is the solution to this system of equations?
x - 2y= 15
2x + 4y = -18

Answers

The answer to your problem is 3 and -6

If x = 27 and y = 70, what is y when x = 6?​

Answers

Answer: 18

Step-by-step explanation:

When a ball is thrown into the air, the path that the ball travels is modeled by the parabola y − 5 = −0.05(x − 10)2, measured in feet. What is the maximum height the ball reaches?

Answers

Answer:

the maximum height in feet the ball reaches 5ft

Step-by-step explanation:

find the slope of the line passing through (3,7 ) and (6,11) asap​

Answers

it would be 4/3 hope this help

Answer:

4/3

Step-by-step explanation:

You're going to want to use the slope formula which is attached. Using this, you'll take the second y and subtract the first y from it. In other words, 11-7, which is 4. This will be the numerator. Then, you'll take the second x and subtract the first x from it. In other words, 6-3, which is 3. This will be the denominator. The final answer is [tex]\frac{4}{3}[/tex].

PLEASE Help ASAaP will give brainlist

Answers

Answer: yes they probably are because they can be any size

I’m doing a percent equation and I need help here is the question 90% of blank =72

Answers

Answer:

80

Step-by-step explanation:

90/100*x=72

9/10*x=72

x=72*10/9

x=80

Find the zeros of y = x - 8x – 3 by completing the square. O A. x = 4 + /19 O B. X= -4/19 -4 O C. * = 31.77 D. X = +3​

Answers

Answer:

I got -3/7

Step-by-step explanation:

Josh made $242 for 11 hours of work.
At the same rate, how much would he make for 7 hours of work?

Answers

Answer:

If 11hrs= $242

   7hrs=7x242/100

             154

Josh will made $154

Step-by-step explanation:

Victoria sets a goal for the number of boxes of Girl Scout cookies she wants to sell.So far, she's solved 33 boxes.I this is nine more than two fifths of her goal.What is her goal?

anyone know the equation is?I can't figure it out-

Answers

Her goal is 120 boxes

I hoped this helped :)

Miguel places his 13-foot ladder 5 feet from the edge of his house. How high does the ladder reach? A. 8 feet B. 12 feet C. 13.9 feet D. 144 feet E. 194 feet

Answers

Answer:

A - eight feet

Step-by-step explanation:

20 character rule can be dumb sometimes

The Pythagoras is the sum of the square of two sides is equal to the square of the longest side. The height of the house is 12 feet, then the correct option is B.

What is a right-angle triangle?

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.

Miguel places his 13-foot ladder 5 feet from the edge of his house.

Then the height of the house is given by the Pythagoras theorem.

P² = H² - B²

P² = 13² - 5²

P² = 169 - 25

P² = 144

P = 12

Then the height of the house is 12 feet.

More about the right-angle triangle link is given below.

https://brainly.com/question/3770177

A candy maker is mixing up some sugar syrup for use in making sweets. How much of 30% sugar syrup should she add to 12 liters of 20% sugar syrup to obtain a mixture that contains 26% sugar? Write your answer as a whole number or as a decimal rounded to the nearest tenth.

Answers

Answer:

She should add 18 liters of 30% sugar syrup

Step-by-step explanation:

Let the amount of sugar syrup be x

Mathematically;

30% of x liters + 20% of 12 liters = 26% of (x + 12)

So, we have

0.3x + 2.4 = 0.26x + 3.12

0.3x-0.26x = 3.12-2.4

0.04x = 0.72

x = 0.72/0.04

x = 18

HELP PLEASE
If X represents the number of pictures, write an equality to represent the situation!

Answers

Answer:

The Drama Club needs to sell more than 3 pictures to make a profit.

The inequality 10x ≥ 2.55x +25  represents the situation.

Step-by-step explanation:

Given that:

Rent for lighting equipment = $25

Price per print = $2.55

Selling price of one picture = $10

x be the number of pictures.

Selling price * No. of pictures sold ≥ Price of per print * pictures printed + rent

10x ≥ 2.55x +25

10x-2.55x≥25

7.45x≥25

Dividing both sides by 7.45

[tex]\frac{7.45x}{7.45}\geq \frac{25}{7.45}\\x\geq 3.35[/tex]

Hence,

The Drama Club needs to sell more than 3 pictures to make a profit.

The inequality 10x ≥ 2.55x +25  represents the situation.

Use the figure to find the measure of Angle 6.

Answers

Answer:

40

Step-by-step explanation:

140-180= 40

A walking path is being built along the diagonal of a
rectangular park. Determine the length of the path, to the
nearest metre.
A 135 m
B 97 m
C 66 m
D 58 m​

Answers

Answer:

C

Step-by-step explanation:

BRAINLIEST PLEASE

The schools says they will take the students to see the movie with more than 30% of the votes. Which type of movie will the 7th graders be seeing? Explain your reasoning.
7th grade movie votes:
drama-3
comedy-8
action-4

Work:
Fraction Drama:
Fraction Comedy:
Fraction Action:
Convert to Percent:

Answers

So if everyone voted there would be only 15 ppl in the class. So 15= 100%
Now put that on the bottom for your fractions 3/15 8/15 4/15 because you need to find the percentage of the whole 7th grade.
Now to get each% divide the top number by the bottom.
3/15=.2
8/15=.53
4/15=.25
Then times each decimal by 100 to get the decimal converted to percentage.
So 53% voted for comedy.

Convert the measurement.
56.8 grams= ounces

Answers

Answer:

2.003561 ounces or 2.0 rounded

Step-by-step explanation:

The volume of vegetable soup in a serving is proportional
to the mass of the serving. A 290 mL serving of vegetable
soup has a mass of 180 g. What is the mass of a 348 mL
serving of soup?

Answers

Answer:150

Step-by-step explanation:

The mass of 348mL serving soup is 216 grams

The serving is proportional; so, we have:

[tex]\mathbf{290mL = 180g}[/tex]

[tex]\mathbf{348mL = x}[/tex]

Where x represents the mass of 348mL serving soup.

Cross multiply.

So, we have:

[tex]\mathbf{x \times 290mL = 180g \times 348mL}[/tex]

Cancel out common units

[tex]\mathbf{x \times 290 = 180g \times 348}[/tex]

[tex]\mathbf{x \times 290 = 62640g}[/tex]

Divide both sides by 290

[tex]\mathbf{x = 216g}[/tex]

Hence, the mass of 348mL serving soup is 216 grams

Read more about proportional equations at:

https://brainly.com/question/894687

A student records the sexes and breeds of a dog in animal shelter. Which kind of data is the student recording

Answers

Answer:

sexes and breeds duh

Step-by-step explanation:

Answer:

data of the dogs

Step-by-step explanation:

Part A Tim wants to buy three pairs of jeans. He compares the prices at a store in his neighborhood and at an online store. He finds that a pair of jeans costs $24 at the local store. If he buys online, each pair would cost $22, and he would have to pay a shipping fee of $6 per order.

Answers

Answer:

The pants from the local store would be $72.00

the pants from the online store would be $85.00

the difference in price is $13.00

therefore the pants from the local store would be cheaper

Step-by-step explanation:

IM NOT SURE IF THIS ANSWERS YOUR QUESTION PLEASE CLARIFY!!!!

Pentagon JKLMN is similar to pentagon UVWXY.
What is the length of WX?
18
15
10
N
(not drawn to scale)
A 15
13
12
O 18

Answers

9514 1404 393

Answer:

  C.  12

Step-by-step explanation:

Corresponding sides are proportional. Sides with the same mark are the same length.

  WX/XY = LM/MN = LM/KJ

  WX/10 = 18/15

  WX = 180/15 . . . . multiply by 10

  WX = 12

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