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
liq [111]
3 years ago
6

Jorge has some dimes and quarters. He has 10 more dimes than quarters and the collection of coins is worth $2.40. How many dimes

and quarters does Jorge have?
Mathematics
1 answer:
PIT_PIT [208]3 years ago
5 0

Answer:

14 dimes and 4 quarters

Step-by-step explanation:

x= number of dimes

y=number of quarters

x-10=y

0.10x+0.25y=2.40

substitute for y

0.10x+0.25(x-10)=2.40

0.35x-2.50=2.40

0.35x=4.90

x=14

y=4

You might be interested in
50 meters to 20 meters<br><br> Increase or decrease?
Aleonysh [2.5K]

Answer:

Decrease

Step-by-step explanation:

50 is bigger than 20, so it's decreasing and the units are the same.

3 0
3 years ago
Question is in the picture<br>please help
LiRa [457]

When given the graph of a function, the domain would include all the points that there is a graph. The strategy is to find what <em>is not</em> included.

What we are looking for are points of discontinuity. Think of it as when you remove your pencil from the paper.

From left to right, the graph stops at x = -3. So anything less than -3 is in the domain. Next, the graph starts up again at x =-1 after an asymptote (the vertical dashed lines). This piece goes to x = 4. So our domain is from -1 to 4.

Lastly, there's a jump from 4 to 5 and the graph goes on again. After 5, we take all the stuff more than it. So x > 5 is in the domain.

So x < -3, - 1 < x < 4, and x > 5 appears to be our domain. However, end points needed to be checked to see if we include them or not. Again we go left to right.

At x = -3 there is a filled (or closed) circle and that means we include -3.

At x = -1 there is an asymptote. Asymptotes are things you get close to but don't get to. (Think of it as the "I'm Not Touching" game you play on car trips.) So we exclude -1.

At x = 4 there is an unfilled (or open) circle and that means we exclude 4.

At x = 5 there is a filled circle so we include 5.

Now we refine our domain for the endpoints.

x ≤ -3, -1 < x < 4, x ≥ 5 is our domain.

The problem gives us intervals, and we gave it in inequalities. When we include an endpoint we use brackets - [ and } and when we exclude and endpoint we use parentheses - ( and ). Let's go back to x ≤ -3. Anything less works, and -3 is included (closed circle). That interval is (-∞, -3]. Next is the piece between -1 and 4. Since both are excluded, (-1,4) is our interval. We include 5 to write x ≥5 as the interval [5,∞).

Put the bolded ones all together and use the union, ∪, symbol to connect them, since something on the graph could be in any piece.

Our domain is (-∞, -3] ∪(-1,4) ∪ [5,∞).

5 0
3 years ago
What is the slope of the line that passes through the points (3, -2) and (9, -2)?
Step2247 [10]

Answer:

0 or 0/6

Step-by-step explanation:

3+6=9

-2+0=-2

0/6=0

6 0
3 years ago
What are the first five multiples of 12? Type the multiples in increasing order.
Mashutka [201]

Answer:12, 24, 36, 48, 60

6 0
3 years ago
Read 2 more answers
Please answer A and B and give an explanation and show work. thank you!
NNADVOKAT [17]
Dont know a but b is 
75=100-2p
75 minus 100 = -25=-2p
-25/-2= p 
p=$12.50
4 0
3 years ago
Other questions:
  • 1) Increase 520 by 2.5 % 2) Decrease 240 by 0.5%
    6·1 answer
  • Eight oranges cost $1.00. How much will 5 dozen oranges cost?
    14·2 answers
  • 1. Solve the equation for x.<br>   x² = 729 <br>   The solution of the equation is x =
    14·2 answers
  • Complete 135,000mg to kg
    10·2 answers
  • What is the surface area &amp; volume of each of the shapes?
    7·1 answer
  • Please help Carlos has a monthly budget of $250.00 for clothing. He spent $61.96 the first week, $52.43 the second week, and $72
    10·1 answer
  • I need Help with my assignment It is very difficult and I don't have tutoring due to this pandemic so please help me Real answer
    11·1 answer
  • Someone help me with this ASAP
    13·2 answers
  • An electrician charges $15 plus $11 per hour. Another electrician charges $10 plus $15 per hour. Which of the systems of equatio
    6·1 answer
  • What is the volume of the box with a height of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!