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
Tema [17]
3 years ago
14

You have quarters and dimes that total $2.80. Your friend says it is possible that the number of quarters is 8 more than the num

ber of dimes. Is your friend correct? Explain. Let d represent the number of dimes.
Mathematics
1 answer:
docker41 [41]3 years ago
5 0

Answer:

No.

Step-by-step explanation:

Let d represent the number of dimes. Then the number of quarters (according to the friend) is d+8. The total value is

... 10d +25(d+8) = 280 . . . . in cents

... 35d + 200 = 280 . . . . . . eliminate parentheses

... 35d = 80 . . . . . . . . . . . . . subtract 200

... d = 80/35 = 16/7 = 2 1/7 . . . . . not a realistic number of coins

_____

The difference between the number of quarters and the number of dimes may be any multiple of 7.

You might be interested in
If 8 = 27 and F = 540, find ). Round to the nearest tenth.
pychu [463]

Answer: F=160

Step-by-step explanation:

if

8=27

F = 540

multiply 540 x 8 /27 = F = 160

4 0
3 years ago
A bouncy ball is dropped such that the height of its first bounce is 6 feet and each successive bounce is 72% of the previous bo
Darina [25.2K]

Answer:1.2

Step-by-step explanation:

5 0
3 years ago
The pool at "Splash Around" is open for 14 weeks during the summer. You can swim for $6 a session, or you can buy a membership f
iris [78.8K]
Price before membership= price 1 = $6
price after membership = price 2 = $4
Membership price = $100
SO according to price 1 and price 2; price after membership saves up $2 for each session.
Hence to justify the price of membership number of sessions can be calculated as follows:-
$2 saved = 1 session
to make it $100 multiply both sides by 50
2×50 = 1×50
100$ saved = 50 sessions
so 50 sessions ate required to justify buying the membership.


Hope this helped :)
4 0
3 years ago
Read 2 more answers
A circle has a diameter with endpoints of (-3, 8) and (7, 4). What is the center of the circle?
Alexeev081 [22]
The center of the circle is expressed as (h,k) in the standard form  of equation. In this case, the diameter endpoints are <span>(-3, 8) and (7, 4). Hence the circle center has coordinates which are the midpoints of the two points. 

x = (-3 + 7) /2  = 2
y = (8 + 4) /2 = 6 

hence the center of the circle is (2,6)</span>
5 0
3 years ago
At a carnival game, there is a 38% probability of winning a prize. What is the probability of not winning a prize?
astra-53 [7]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • A spinner is divided into many sections of equal size. Some sections are red, some are blue, and the remaining are green. The pr
    14·2 answers
  • So far this season, Shawn has averaged 6 out of 11 free throws per game. Based on his previous performance, how many free throws
    9·1 answer
  • Use the information given in the diagram. Tell why AB≈DC and
    14·2 answers
  • How do you solve 0.75(8+e)=2−1.25e?
    10·1 answer
  • Wing Length vs. Age у 18 16 14 12 10 Age 6 ONA O 00 X 5 07 1 2 3 4 Wing Length (in) The y-intercept of the estimated line of bes
    10·1 answer
  • The price of a train ticket consists of an initial fee plus a constant fee per stop.
    8·1 answer
  • Which product matches the shading on the grids? ​
    9·1 answer
  • Savannah is writing an article for the school paper on the next school election. She surveys 20 of her friends and finds that 17
    12·1 answer
  • Find a linear equation whose graph is the straight line with the given property.
    7·1 answer
  • Yumiko solved |x|&gt;5 by solving x&gt;-5 and x&lt;5. explain the error yumiko made
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!