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
mezya [45]
3 years ago
11

NEED HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Archy [21]3 years ago
5 0
Let the price of a bag of balloon=x     and  the price of a roll of crepe paper =y   
5x+2y=38
12x+14y=128
These are the equation you get from the question   
    5x+2y=38
  -5x        -5x         
     2y=38-5x       divide both side by 2           
     y=19-5/2x 
    
    12x+14y=128     plug in the y
   12x+14(19-5/2x)=128
   12x+266-35x=128    
   -23x+266=128
           -266  -266
       -23x=-138      divide both side by -23
           x=6   this will be the price of a bag of balloon 

    5x+2y=38     plug in x
    5(6)+2y=38
     30+2y=38
    -30       -30
        2y=8         divide both side by 2
         y=4          this will be the price of a roll of crepe paper 
You might be interested in
3x+3=x-5 solve using models
Troyanec [42]
3x+3=x-5
-x -x
2x+3=-5
-3 -3
2x =-8
/2 /2
X=-4
6 0
3 years ago
Help I need answers
julsineya [31]

Answer:

what are the resualts

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What 18 divided by 1210?
natita [175]
18/1210 is 0.0148760331
3 0
4 years ago
Read 2 more answers
What is the slope of the line 3y=6x-1
Allisa [31]

Answer:

2

Step-by-step explanation:

Simplify 3y=6x+1;

y=2x-1/3

y=mx+b , where m represents the slope.

Slope; 2

6 0
3 years ago
Read 2 more answers
Manny purchased a set of cookie cutters for $25. He plans to sell cookies for $0.75 each. The ingredients for his cookies will c
juin [17]

Answer: Profit = 0.4x - 25

Step-by-step explanation:

Let x represent the number of cookies that he makes and sells.

Profit = Revenue - total cost

Manny purchased a set of cookie cutters for $25. The ingredients for his cookies will cost him $0.35 per Cookie. This means that his total cost of producing x cookies is

0.35x + 25

He plans to sell cookies for $0.75 each. This means that the revenue generated from selling x cookies is 0.75x

Therefore, the equation giving Manny's total profit per cookie as a function of the number of cookies he makes is

Profit = 0.75x - (0.35x + 25)

Profit = 0.75x - 0.35x - 25

Profit = 0.4x - 25

6 0
4 years ago
Other questions:
  • What is the answer, Shelby made 5 quarts of juice for a picnic. How many cups of juice did shelby make?
    6·2 answers
  • The cost of a coat has been decreased from £120 to £84. What is the percentage change?
    8·1 answer
  • the slope of a line is 3/2 and the line contains the points (5,9) and (3, a). what is the value of a?
    15·1 answer
  • Justin has $7.50 more than Eva ,and Emma has 12$ less than Justin. Together, they have a total of $63.00 How much money does eac
    15·1 answer
  • How many miles is it to swim from Florida to Jamaica
    10·1 answer
  • Simplify ratios 99 66
    7·1 answer
  • Help on this this is the last one promise!!
    5·2 answers
  • What number is in between 3.0 and 3.5
    13·1 answer
  • 07 as a percent and fraction equivalent
    14·2 answers
  • Please help me solve this problem?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!