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
Semenov [28]
3 years ago
15

Ron has 13 coins with a total value of $2.25. the coins are nickels and quarters. how many of each coin does he have

Mathematics
2 answers:
Nikolay [14]3 years ago
8 0
8 quarters = $2.00
5 nickles = $0.25

Total ... 13 coins = $2.25
alukav5142 [94]3 years ago
5 0
N-nickels, q-<span>quarters

n+q=13=>n=13-q

0.25q+0.05n=2.25
0.25q+0.05(13-q)=2.25
0.25q+0.65-0.05q=2.25
0.20q=2.25-0.65
0.20q=1.6
q=1.6:0.2
q=8
n=13-8
n=5

</span>
You might be interested in
I need help with this ?
Alex

Answer:

Joshua worked 4 hours and luke worked 7

Step-by-step explanation:

25x + 35x +105 = 345

60x = 345 - 105

60x = 240

x = 240/60

x = 4 hours

8 0
2 years ago
10+x=5(1/5x+2)<br> solve for x
In-s [12.5K]
10+x=5(1/5x+2)
10+x= x+10
     -x   -x
10=10

Answer- All real numbers or infinity  many problems 
5 0
3 years ago
the greater of two numbers is 1 more than twice smaller. three times greater exceeds 5 times the smaller by 10. find the three n
krek1111 [17]
<h3><u>The value of the greater number is 15.</u></h3><h3><u>The value of the smaller number is 7.</u></h3>

x = 2y + 1

3x = 5y + 10

Because we have a value for x we can plug this value in to find the value of y.

3(2y + 1) = 5y + 10

Distributive property.

6y + 3 = 5y + 10

Subtract 5y from both sides.

y + 3 = 10

Subtract 3 from both sides.

y = 7

We can plug this value back into the original equation to find the value of x.

x = 2(7) + 1

x = 15


7 0
3 years ago
Which statement would not be used in the proof
Zigmanuir [339]
Proof is something like I have proof of u eating pie. I think it might be D.
6 0
3 years ago
How do I find the Q1, Q3, and IQR of a median that is a decimal?
bija089 [108]
Step 1: Put the numbers in order.
1,2,5,6,7,9,12,15,18,19,27<span>Step 2: </span>Find the median (How to find a median).
1,2,5,6,7,9,12,15,18,19,27<span>Step 3: </span>Place parentheses around the numbers above and below the median. 
Not necessary statistically–but it makes Q1 and Q3 easier to spot.
(1,2,5,6,7),9,(12,15,18,19,27)<span>Step 4: </span>Find Q1 and Q3
Q1 can be thought of as a median in the lower half of the data. Q3 can be thought of as a median for the upper half of data.
(1,2,5,6,7),  9, ( 12,15,18,19,27). Q1=5 and Q3=18.<span>Step 5: </span>Subtract Q1 from Q3 to find the interquartile range.
18-5=13.
Hope this helped:) 
-BRIEMODEE:)
3 0
3 years ago
Other questions:
  • At a carnival, food tickets cost $2 each and ride tickets cost $3 each. A total of $1,240 was collected at the carnival. The num
    11·1 answer
  • When babies are born, their lengths are recorded. Maddy is 18 1/2 inches. Her twin Alex, is 20 3/4 inches. How much longer is Ma
    6·2 answers
  • How do you write 12/75 as a decimal
    7·2 answers
  • Can someone help me with 4?
    5·2 answers
  • Simplify.<br> 3n² + 3(3m³ + 3n³)<br><br> Thanks so much!!
    6·2 answers
  • A sphere has a diameter of 12 in.? Which responses represent the volume of this sphere? (Use 3.14 to approximate π, and round to
    6·1 answer
  • Adjacent angles whose exterior sides are opposite rays are _______ a0.
    12·2 answers
  • A certain disease has an incidence rate of 0.2%. If the false negative rate is 8% and the false positive rate is 4%, compute the
    15·1 answer
  • Fill in geometry proofs. ANGLES. ( I WILL GIVE BRAINLIEST! PLS HELP!)<br><br> refer to attachment
    7·2 answers
  • I need help with 17-22!!!!​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!