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
DochEvi [55]
3 years ago
7

A person has 28 coins, all dimes and quarters, worth $4.60. How many quarters are there?

Mathematics
2 answers:
kolbaska11 [484]3 years ago
5 0

Answer:

12

Step-by-step explanation:

D=dimes Q=quarters

D+Q=28 so D=28-Q

460=10D+25Q

substitute 28Q for D

10(28-Q)+25Q=460

280-10Q+25Q=460

combine like terms

15Q=180

divide both sides by 15 so Q= 12 and D=16

(I believe this is the correct answer)

Drupady [299]3 years ago
4 0

Remember that a dime is worth 10 cents and a quarter is worth 25 cents and $4.60 is 460 cents.

Let D = the number of dimes and Q = the number of quarters.

Now let's translate the English into math. . .

there are 28 coins in all--> D + Q = 28  so D = 28 - Q

they are worth 460 cents--> 10D + 25Q = 460

Now substitute 28-Q for D--> 10(28-Q) + 25Q = 460

280 - 10Q + 25Q = 460

Combine like term. . .

15Q = 180

Divide both sides by 15--> Q = 12

So D = 16

You might be interested in
Linda walked 1/6 mi to the park and then another 4/9 mi to the cafe. How far did she walk in total?
Musya8 [376]

Answer:

could you show the answers

5 0
3 years ago
Read 2 more answers
The formula y= 72h can be used to find the velocity (v) in feet per second of an object that has fallen h feet. Find
algol [13]

Answer:

11211

Step-by-step explanation:

1212

6 0
3 years ago
Read 2 more answers
What two integers have a product of -35 and a sum -2
vovangra [49]

-7 and 5. The product would be -35 and the sum -2.

Hope this helps

8 0
4 years ago
Oranges cost $3.60 per dozen how much does 1 cost?
castortr0y [4]

If 6 oranges cost 3.60 than one orange costs .60. To find, divide total price by number of oranges.

3.60/6 = .60

There is no set of pound in a gallon because we do not know the substance. Different liquids weigh different amounts.

3.5 gallons is equal to 448 ounces. To find, multiply the number of gallons (3.5) by the amount of ounces in a gallon (128)

3.5 * 128 = 448

Pound and pints are like gallons and pound. Unless we know the substance we cannot solve.

.75 pints is equal to 12 ounces. To find that, we multiply the number of pints (.75) by the number of ounces in a pint (16)

.75 * 16 = 12

6 0
3 years ago
(2×10^6 )×(0.00009)<br><br> IN SCIENTIFIC NOTATION
pshichka [43]
In scientific notation the answer is: 0.00018 x 10^6
4 0
3 years ago
Other questions:
  • Hot dogs come in packages of 10 and hot dog buns come in packages of 8 . What is the least amount of product that you need to Bu
    14·2 answers
  • phan fills the tank of her car with gasoline before starting her road trip. the table below shows the amount of gas left in her
    14·2 answers
  • You are throwing a pair of dice. What is the probability that you will get a sum of 2?
    15·1 answer
  • - 33+ 5x=2x+21<br>What's the answer to this? It's a variables on both sides problem​
    10·1 answer
  • Is it true that an irrational and a rational number is always a rational number
    14·1 answer
  • 26 beats in 1/6 minutes equals what beats per minute
    15·2 answers
  • Brainly awnser fast pls!!
    10·2 answers
  • HURRRYYY!!!<br> Which relation is a function?
    10·1 answer
  • Find the perimeter of the figure. AND I'LL MAKE YOU THE BRAINIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • A school flag consists of three rectangular sections that each have a different color.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!