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
topjm [15]
2 years ago
13

There are 31 coins of dimes and quarters. If the number of dimes is 5 more than the number of quarters, how many quarters are th

ere? How many are dimes? Hint: let x=dimes and y=quarters. Write your answer in an ordered pair ( , ).
Mathematics
1 answer:
emmasim [6.3K]2 years ago
5 0

Answer:

<u>13 Quarters and 18 Dimes</u>

Step-by-step explanation:

Let D and Q stand for the numbers of Dimes(D) and Quarters(Q).  Give x and y a break, and make it easier to remember which is which.

D + Q = 31

D = Q + 5

Therefore:

D + Q = 31

(Q+5) + Q = 31

2Q + 5 = 31

2Q = 26

<u>Q = 13</u>

<u>Then D = (13+5) or 18</u>

================

Check:

D + Q = 31 ?

18 + 13 = 31  <u>YES</u>

----------------------

D = Q + 5 ?

18 = 13 + 5   <u>YES</u>

You might be interested in
0.32 with the 2 repeating as a fraction
pashok25 [27]

Answer:

29/90

Step-by-step explanation:

Use the formula:

((DN x F) - NRP)/D

DN = Decimal Number

F = 10 if one repeating number, 100 if two repeating numbers, 1000 if three repeating numbers, etc.

NRP = Non-repeating part of decimal number.

D = 9 if one repeating number, 99 if two repeating numbers, 999 if three repeating numbers, etc.

((0.32 x 10) - 0.3)/9

= 2.9/9  = 29/90

3 0
2 years ago
Which is the graph of F(x)= sqrt 4x
iogann1982 [59]

Answer:

Mejdkdkcidjdj

Step-by-step explanation:jdndj

3 0
3 years ago
Read 2 more answers
If sin (90° - α) = BC /CA,write down the ratio of sina.​
Papessa [141]

Answer:

Step-by-step explanation:

sin(90-a)=cos

cos = angle adjacent

theta=BC/CA

7 0
1 year ago
What percent of 60 is 15
ozzi
Well we know that 
15/60 can be reduced to 1/4 
And 1/4 can be turned into a percent as 25% 

So your answer is 25% 

Good Luck! :)
3 0
3 years ago
Read 2 more answers
Enter the equation in standard form. y=9/3x-5/3
Marianna [84]
<span>y = 9/3 x - 5/3
3y = 9x - 5
9x - 3y = 5 ...<----this is standard form</span>
3 0
3 years ago
Other questions:
  • Please help!! I really need help!
    6·1 answer
  • Assume that the numbers of a data set are arranged in ascending order. Which statement about the third quartile is true? All of
    9·2 answers
  • A store has a coupon for $10 off and a discount of 20%. Write a function for the coupon. Use x for the original price and C for
    14·1 answer
  • 4000 principle earning 6% compounded annually after 5 years
    6·1 answer
  • Identify the equivalent expression -4(b+2) - 3b
    13·1 answer
  • cleaning diesel dispensers for 35 mins you have completed 6 how many mins has it taken you to clean 1
    12·1 answer
  • A blue chip company that makes computer chips found that 2 out of
    5·1 answer
  • Copy machine can print 480 copies every 4 minutes. A teacher printed 720
    14·2 answers
  • PLEASE HELP ASAP!!!!!!!! Can someone please check my answer, I'm not sure about the last one.
    10·2 answers
  • What size pizza should she order to get 37.68in of crust?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!