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
Alexandra and Austin applied to the same university. They looked up the average SAT score of students admitted to that universit
Deffense [45]

Answer:

x= (y+40)-(y-330)

Step-by-step explanation:

According to the information provided, the difference in their scores would be the result of subtracting Austin's SAT score from Alexandra's SAT score.

Then, as Alexandra's SAT score was 40 points above the average score this means that you have to add 40 to the average score to get her result. Also, as Austin's SAT score was 330 points below the average score, this means that you have to subtract 330 from the average score. With this you can write the expression:

x= difference in their scores

y= average score

x= (y+40)-(y-330)

7 0
3 years ago
In which set(s) of numbers would you find the number 0?
Harlamova29_29 [7]
Apparently it’s all of them
3 0
3 years ago
Solve the inequality below<br> -8x + 4 &gt; 20<br> Include x and number in answer
Genrish500 [490]

Answer:

x<-2

Step-by-step explanation:

You first subtract 4 from both sides. Then you divide both sides by -8 (note: when you multiply or divide by a negative the sign flips. Then you get your answer

7 0
3 years ago
The pictogram shows information about the numbers of phones sold in a shop over a 5-month period.
OLEGan [10]

Answer:

a) 5(6) = 30

b) 3.5(6) = 21

c) 153

Step-by-step explanation:

c) 30 + 39 + 21 + 36 + 27 = 153

7 0
3 years ago
Write as a mixed number. 60/7
Veronika [31]

Answer:

8 3/7

Step-by-step explanation:

divide 60 by 7 and it goes 8 times with 3 leftover

6 0
2 years ago
Read 2 more answers
Other questions:
  • grandma gigi gave leyla a rare purple stone for her sweet 16 birthday. at that time,the stone was worth$245. it has been increas
    15·1 answer
  • 14. Simplify (4a^-4)^-3<br> a. –64x^9<br> b. x^12/64<br> c. -8x^12<br> d. -1/2x^4
    7·1 answer
  • I need help pl lz help me out don't get it
    13·2 answers
  • The circumference of Circle F is 72 cm. What is the length of Arc DE (the minor arc)?
    12·2 answers
  • At president Obama's inauguration in 2013,the newspaper headlines stated there were about 800,000 people in attendance. if the n
    6·2 answers
  • Carla is making bracelets she wants to put 10 charms on each bracelet charms are sold in packets of 12 what is the least number
    15·1 answer
  • WILL GIVE BRAINLIST IN SECONDS!!! <br><br> [ solve for x ]
    14·1 answer
  • a triangle flower bed has one angle of 64 degrees. the other two angles are congruent to one another. what are the measures of t
    14·1 answer
  • A new car usually costs £8500. Henry gets a discount of £1000. What is the discount as a percentage of the the usual cost? Give
    15·1 answer
  • BRAINIEST TO WHOEVER RIGHT
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!