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
kakasveta [241]
3 years ago
14

Suppose you bought supplies. Three rolls of streamers and 15 party hats cost $30. Later, you bought 2 rolls of streamers ad 4 pa

rty hats for $11. Solve a system of equations to determine the cost of streamers and party hats, find their costs.
Mathematics
1 answer:
Zolol [24]3 years ago
6 0
Since 30÷15 is 2 you now know each party hat is 2 dollars. Now we know that and we can easily find out how much a roll of streamer is. 11-(4x2)=3. 3÷2=1.5. One roll of streamer is $1.50 and one party hat is $2. I'm pretty sure I did this right lol I hope it helps
You might be interested in
The 1984 movie footloose made $8,556,965 in its opening weekend. The 2011 remake of footloose made $15,556,113 in its opening we
mezya [45]

Answer:

  • absolute change: $6,999,148
  • relative change: 81.79%

Step-by-step explanation:

The absolute change is the difference between the earnings numbers:

  $15,556,113 -8,556,965 = $6,999,148

__

The relative change is the ratio of this difference to the original amount:

  $6,999,148/$8,556,965 × 100% ≈ 81.794748% ≈ 81.79%

6 0
3 years ago
A segment in the complex plane has a midpoint at 7 – 2i. If the segment has an endpoint at 11 – 3i, what is the other endpoint?
Gnoma [55]

Answer:

3 – i hope i helped                       :)))))

Step-by-step explanation:


3 0
3 years ago
Y-x=15 y-x=5 using elimination
Galina-37 [17]

Answer:

No solution

Step-by-step explanation:

To eliminate is to get rid of one of the variables.

You can choose to either add each term in the equations or subtract each term in the equation.

For a variable to be eliminated, there must one pair that have the same constant with it. Each equation already has the same constant with a variable.

Try adding them.

.     y - x = 15

<u>+    y - x = 5</u>

2y - 2x = 20   No variables were eliminated.

Try subtracting.

.     y - x = 15

<u>-     y - x = 5</u>

0y - 0x  = 10   All variables were eliminated.

.         0 = 10     This is false.

This system of equations cannot be solved.

Graphically, these two lines would have the same slope and are parallel. The solution to a system is same as the point of intersection. Parallel lines never meet, never intersect, therefore there is no solution.

3 0
3 years ago
On a hot day, a football team drank an entire 50-gallon cooler of water and half as much again. How much water did they drink?
NemiM [27]

Answer:

The football team drank a total of 75 gallons of water.

Step-by-step explanation:

Half of 50 gallons is 25 gallons. 25 gallons + 50 gallons = 75 gallons.

7 0
3 years ago
Read 2 more answers
B)the LCM of three numbers is 24 and their G.C.D is 4. If two<br>find the other number​
kicyunya [14]

6

Step-by-step explanation:

because 6*4=24, so the G.C.D is 4 and the other number is 6

4 0
3 years ago
Other questions:
  • Serena is the manager at the coffee shop .the amount of money she earns is represented by the equation m= 21h , where h is the a
    10·2 answers
  • 1 over 10 of the M&amp;M's in a bag are red, 3 over 10 are blue and 1 over 10 are brown. What fraction of all the M&amp;M's are
    6·1 answer
  • Which is true about the volume or surface area of these prisms?
    15·1 answer
  • Simplify the expression. 10h+6-5h+3
    15·1 answer
  • one that 126945 round - 126945 to the nearest hundred thousand nearest ten thousand nearest thousand which of these rounds amoun
    10·1 answer
  • Are these equations of lines parallel: Y=3X+4 and Y+3 = -3(-X+2)<br> NO<br> YES
    6·2 answers
  • Algebra 2 questions
    13·1 answer
  • Help need help fast
    10·1 answer
  • Please Help<br><br> Can someone explain where the 4i to the square root of 3 came from?
    12·1 answer
  • max picks two different cards without replacement from a standard $52$-card deck. what is the probability that the cards are of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!