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
Mekhanik [1.2K]
3 years ago
13

A coin purse contains d dimes and q quarters.There are 20 coins in the purse and the total value of the coins is $4.25.which sys

tem of equations represents the situation
Mathematics
2 answers:
Ratling [72]3 years ago
8 0
The correct way to express your answer somewhat escapes me for the moment (insomnia for days) but the first answer doesn't satisfy ALL of your question because the total amount of money exceeds the given total of $4.25. I know that you have 15 quarters and 5 dimes to satisfy everything. 15+5=20 coins and 15x.25=3.75
5x.10=.50
$3.75 + .50 = $4.25
I hope this helps and you can convey it properly.
mel-nik [20]3 years ago
3 0
25q + 10d = 425
q + d = 20

First thing's first, picture 4 quarters. Do you know how much these 4 quarters are worth? Obviously, you'd answer one dollar, but take the time to think about how exactly you came up with this answer.

"Well, it's simple," you might think, "Multiply 0.25 by 4."

Similar to this train of thought, the first equation is formulated by doing exactly that. 'q' represents an unknown number of quarters, and 'd' an unknown number of dimes. We use 25q and 10d, because, well, we're multiplying their value by the number of coins. They're equivalent to 425 because the 20 unknown coins make $4.25 (I converted it to cents to get rid of the pesky decimals, but if you want to keep it as dollars that works too).

Because the equation states that there are 20 coins in total, we know that we can make the equation 'q + d = 20' since there are 20 quarters and dimes in total.

Let me know if you need any further explanation :)
-T.B.
You might be interested in
Felicity is planting a garden. Should she measure the perimeter or area to find how much dirt she needs to cover the garden?
Alex_Xolod [135]
She wants to fill the garden with dirt so she should measure the area. If she were building a fence outside the garden then she'd measure the perimeter. 
4 0
3 years ago
Denise received 300 votes in election for student council president she was 60% of the students who voted in the election how ma
nata0808 [166]

Answer: 500 votes

Step-by-step explanation:

This can be shown by this formula.

300 is 60% of x. So if u can find the 100% by taking 300 and multiplying it by 100 which would be the 100% and dividing it by 60 which would be the 60%. The number that you get is how many didn't vote for Denise. Now just add these which would be 300+200 which would give you the answer above.

5 0
3 years ago
**At noon the minute and the hour hands overlap. When will it happen next?
Svetllana [295]

Answer: At 01:05 p.m. it will overlap again.

Explanation:

Since there are 22 times in a day the minute and the hour hands overlap.

During the first half of the day , it overlaps 11 times and during the rest of the day it overlap 11 more times.

At noon, the minute and the hour hands overlap and after that it will happen at 01:05 p.m.

Since the minute hand completes a full circle in one hour, so it forms 6 degrees per minute .

So, at 01:05 p.m. it will overlap again.

7 0
3 years ago
What's the digit in the tenths place ​
Darya [45]
Tenths is the digit in the tenths place. Like 0.1 being 1 tenth.
5 0
3 years ago
Simplify 616/196<br> thirteen points for whoever answers the best please help!
mixas84 [53]
That’s the equation for pi, but the simplified fraction is 22/3 (please mark brainliest)
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which value must be added to the expression x^2+12x to make it a perfect square trinomial
    14·1 answer
  • I will give this much points for 7 (x+5)
    10·2 answers
  • Help help help plz ❤️Please
    10·1 answer
  • I need help!!<br> 23=x-9;x=14
    12·1 answer
  • Sandwich sales for one week are $1,275.00 and 300 sandwiches are sold. How much did each sandwich sell for assuming each sold fo
    9·2 answers
  • What is the solution to the equation One-third (x minus 2) = one-fifth (x + 4) + 2?
    5·1 answer
  • What is the zero of the linear function graphed below ? (0,5) (2,-5)
    11·1 answer
  • Need help with this Q&amp;A
    8·1 answer
  • Please answer all 4 questions, iĺl give brainliest
    8·2 answers
  • Joe and Steve are saving money. Joe starts with $105 and save $5 a week. Steve starts with $5 and saves $15 per week. After how
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!