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
HACTEHA [7]
3 years ago
7

Kevin and Randi have a jar containing 63 coins , being either quarters or nickels . they total

Mathematics
1 answer:
Softa [21]3 years ago
8 0
Yess, such fun so

q=number of quarter
n=number of nickles
q+n=63

9.15=915 cents
25 cents=1 q
5 cents=1 n so

915=25q+5n
915=5(5q+n)
divide by 5
183=5q+n

we also have q+n=63
subtract q from both sides
n=63-q
subsitute 63-q for n in second equation
183=5q+63-q
add like terms
183=4q+63
subtract 63 from both sides
120=4q
divdie by 4
30=q
there were 30 quarters
subsitute
63=30+n
subtract 30
33=n


30 quarters
33 nicles

You might be interested in
Help. ASAP. 30 BRAINLY POINTS. ONLY ANSWER IF YOU KNOWW!!
Sav [38]

Answer:

its c i think

Step-by-step explanation:

7 0
2 years ago
!! WILL MARK BRAINLIEST PLZ HELP !!
Luba_88 [7]

Answer:

c

Step-by-step explanation:

.................................

5 0
2 years ago
Completely factor the equation: 35 + 5x
OlgaM077 [116]
5 (x + 7) is the answer
5 0
3 years ago
8 batteries cost £3.99 how much does 1 cost
NemiM [27]

Answer:

1 battery cost .49875 cents, but .50 rounded

Step-by-step explanation:

Divide 3.99 by 8 and you will get .49875

4 0
3 years ago
Read 2 more answers
A grain of sand with a diameter of
melisa1 [442]

Answer:

B) 0.0000000000003

Step-by-step explanation:

Hope this helps.

4 0
3 years ago
Other questions:
  • Which of the following represents the prime factorization of 72?
    6·2 answers
  • WILL MARK BRAINLIEST! PLEASE HELP!
    10·1 answer
  • Given that €1 =£0.72<br> How much is €410 in £?<br> What is the £ to € exchange rate?
    8·1 answer
  • that one kilogram of rice weigh the same as 10 bags containing 100 grams of beans each do you agree with her why or why not
    9·1 answer
  • How do you find the area of a regular polygon
    6·1 answer
  • Which digit is in the hundredths place in the number 742.891?
    5·2 answers
  • What is 10/8 written as a decimal?
    11·2 answers
  • PLEASE HELP ASAP I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER
    14·2 answers
  • *NO LINKS HELP ASAP*
    9·1 answer
  • The scatterplot shows the relationship between the number of calories and the number of grams of fat in food items at a fast-foo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!