1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ziro4ka [17]
2 years ago
13

If 30 Coins In Quarters And Dimes Are Worth $4.80, How Many Of Each Coin Are There?​

Mathematics
1 answer:
GREYUIT [131]2 years ago
3 0

Answer:

There are 18 dimes and 12 quarters

Step-by-step explanation:

Remember that

1 Dime =$0.10

1  Quarter=$0.25

Let

x-----> the number of dimes

y-----> the number of quarters

we know that

x+y=30

x=30-y ------> equation A

0.10x+0.25y=4.80

Multiply by 100 both sides

10x+25y=480 ------> equation B

Substitute equation A in equation B and solve for y

10(30-y)+25y=480

300-10y+25y=480

15y=180

y=12 quarters

Find the value of x

x=30-y=30-12=18 dimes

therefore

There are 18 dimes and 12 quarters

You might be interested in
The population of a city increases by 5% each year. If the current population of the city is 125000, how much population will th
patriot [66]

Answer:

Step-by-step explanation:

125,000×1.05⁷ ≈ 175,888

7 0
3 years ago
Can someone help please???
Dovator [93]

Answer:

Length: x + 5

Step-by-step explanation:

x² + 8x + 15 = length × width

x² + 8x + 15

x² + 5x + 3x + 15

x(x + 5) + 3(x + 5)

(x + 5)(x + 3)

Width: (x + 3)

Length: (x + 5)

4 0
3 years ago
What are integers?<br> Please give your best explanation and a simple example (worth 20 points)
tino4ka555 [31]
<h3><u>Explanation</u></h3>
  • What is Integer?

Integer is a subset of Real Number. It can be broken into these following:

  1. Positive Integer
  2. Zero
  3. Negative Integer

Integer can be any whole numbers. Keep in mind that Integers cannot be fractions, decimal, approximate value, etc. Integers can only be something like 1,2,3,-1,-2,0.

<u>Integers</u><u> </u><u>are</u><u> </u><u>like</u><u> </u><u>Natural</u><u> </u><u>or</u><u> </u><u>Counting</u><u> </u><u>Numbers</u><u> </u><u>except</u><u> </u><u>they</u><u> </u><u>have</u><u> </u><u>0</u><u> </u><u>and</u><u> </u><u>negative</u><u> </u><u>numbers</u><u>.</u>

  • Positive Integer

Positive Integers are basically a natural or counting number. It starts from 1 to any positive countable infinity. Here is the example of positive integer: 1,2,3,4,5,6,7,...

  • Zero

Zero is just a number 0. It is between the negative and positive. 0 is neither positive or negative but it is categorized as Zero.

  • Negative Integers

Negative Integers are opposite of Positive Integers. The opposite of plus is minus and the opposite of minus is plus. Negative Integers are less than both 0 and Positive Integers. Here is the example: -1,-2,-3,-4,-5,...

5 0
3 years ago
Read 2 more answers
Mario made this model to find the 3 digit number and a 1 digit number what multiplication sentence represents marios model
djyliett [7]

Answer:

Step-by-step explanation:

Ewww

6 0
3 years ago
The elevation at sea level is 0 feet. Which of these cities have an elevation that is more than 75 feet away from sea level ?
Jet001 [13]
You need a picture to answer
4 0
3 years ago
Other questions:
  • What is the area of CDEF? Please could you also say how you got your answers, it will be much appreciated.
    11·1 answer
  • Mr. ford drove 483 miles during his trip. How many hundreds are in this number ?
    8·2 answers
  • NEED HELP DUE TODAY
    9·2 answers
  • Isabella wants to put a fence around her pumpkin patch.
    8·1 answer
  • Derive the equation, in the<br> form y = mx, for the line. (Look at the photo!)
    9·1 answer
  • Brianna wants to plot -2 and - 6 on a number line. Which statement is true?
    9·1 answer
  • WILL GIVE 100 POINTS TO WHOEVER ANSWER THIS CORRECTLY. In the similarity transformation of abc to def, abc was dilated by a scal
    12·1 answer
  • Solve for x. Your answer must be simplified. x-24&gt;_9
    5·1 answer
  • Evaluate the expression for x = 4: 6+ (10 - x)2 - 20​
    13·1 answer
  • Hey guys i need help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!