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
alexandr402 [8]
3 years ago
12

A pile of coins, consisting of quarters and half dollars, is worth $11.75. If there are 2 more quarters than half dollars, how m

any of each are there?
Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

The pile contains 17 quarters and 15 half-dollars.

Let <em>x</em> = the number of quarters and <em>y</em> = the number of half-dollars.

We have two equations:

(1) $0.25<em>x</em> + $0.50<em>y</em>  = $11.75

(2) <em>x</em> = <em>y</em> +2

Substitute the value of <em>x</em> from Equation (2) into Equation (1).

0.25(<em>y</em>+2) + 0.50<em>y</em> = 11.75

0.25<em>y</em> + 0.50 + 0.50<em>y</em> = 11.75

0.75<em>y</em> = 11.75 – 0.50 = 11.25

<em>y</em> = 11.25/0.75 = 15

Substitute the value of <em>y</em> in Equation (2).

<em>x</em> = 15 + 2 = 17

The pile contains 17 quarters and 15 half-dollars.

<em>Check</em>: 17×$0.25 + 15×$0.50 = $4.25 + $7.50 = $11.75.

You might be interested in
Carmen is an engineer making plans to run a rail line, represented by the transversal t, through a city.
Lynna [10]

Angle 1 is a "corresponding angle" with respect to the one marked 155°, so it has the same measure. The measure of angle 1 is ...

... 155°

3 0
3 years ago
Read 2 more answers
Number 3 please!!!<br><br><br> Best answer I will mark as brainliest
wolverine [178]
A real world problem is considered a problem that can either be A: Solved in any method. B:has words and numbers So you would write for instant Charlie went to the store he bought 7 items that costed 21.99 how much money does he have left after spending it on the items? Can you solve it no you cannot why? Because it doesnt have the amount of money he was allowed to spend thats what missing information is. Now extra information is when there is something in the problem <span>you DO NOT NEED to solve. Hope that helps you out.</span>
3 0
3 years ago
How to calculate 9120 divided by 12 in long division
MA_775_DIABLO [31]

Answer:

use bus stop method to calculate.

By the way answer is 760

3 0
3 years ago
I have to give a name, values, and a level of measurement for these:
meriva
No. of years:  I have lived for 73 years.  (Value:  # of years)

Phase of life:  At 73, I'm in my late middle age.  Early childhood was a long, long time ago, as was adolescence.  And so on.
 
Amt. of money I have is confidential.  ;)    Well above mininum wage!

Type of psychological functioning:  healthy, constructive (as opposed to schizophrenic, illusions of grandeur, etc.)

Religious training:  essentially Protestant.  There is some numerical fraction implicit in "essentially."

Abstract reasoning ability:  Well above average ability in this department.

These are possible answers.  Take them with a grain of salt.
8 0
4 years ago
Read 2 more answers
PLEASE HELP THIS IS DUE BY 10 MINUTES
garri49 [273]

Answer:

Both 10 and 2

Step-by-step explanation:

Hope this helpsss

3 0
3 years ago
Other questions:
  • An elevator can safely hold 3,500 lbs. A sign in the elevator limits the passenger count to 15. If the adult population has a me
    8·1 answer
  • If triangle ghj is congruent to triangle lmk, with a scale factor of 5:6, find the perimeter of triangle ghj
    9·1 answer
  • Write a rule to describe the function shown. x y −6 −4 −3 −2 0 0 3 2 y equals start fraction two over three end fraction x y equ
    6·2 answers
  • Please help me with this question
    8·1 answer
  • Simplify 1,0008 = 10w
    7·2 answers
  • Marge cut 16 pieces of tape each at 3/8 inches long. How much tape did Marge<br> Cut!
    15·2 answers
  • :( can sum1 please help me I got 15min till its due and well my grades are due in 5 and I'm really suck at this question
    14·2 answers
  • 200, 100,<br> 50, 25,<br> b. What is the fifth term?
    9·2 answers
  • Jacob takes 7 classes, each 50.00 minutes long, every day of the 5 day school week. How many hours per week does he spend in cla
    10·1 answer
  • What type of function is represented in the table?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!