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
wlad13 [49]
3 years ago
8

John is making punch. How many cups of 50% juice should he add to a drink that contains 10% juice if he wants to make 15 cups of

punch containing 20% juice? (How many cups of each drink)
Define one variable based on the percentage of which is being asked.

Set up table (Which wants the percent and amt of Mixture A and Mixture B)

Solve for x.
Mathematics
1 answer:
Bess [88]3 years ago
7 0
Lets make a equal the amount of mixture a and b the amount of mixture b.  You can made an equation .10a+.50b=.20(15) and a+b=15.  So then you make the system of equations:
.10a+.50b=3
a+b=15
I would substitute b in the first equation with b=15-a to get the single equation .10a+.50(15-b)=3 and then solve for b.
.10a+7.5-.5a=3
-.4a+7.5=3
-.40b=-4.5
a=11.25
With that value of a you can find that b=3.75
Therefore you you have to mix 11.25 cups of 10% juice with 3.75 cups of 50% juice to get 15 cups of 20% juice.

This is how I would solve the question.  I don't really know what the question means by setting up a table so I hope this method is fine. If it is not please let me know in the comments so that I can try to fix it.
I hope this helps.

P.S. Let me know if you want me to try to explain to you how I got my first equation.  You have to use knowledge that you will eventually learn in chemistry when going over the unit that introduces you to solutions.
You might be interested in
The corporate team-building event will cost $14 if it has 7 attendees. If there are 9
kobusy [5.1K]

Answer: for 9 attendees it would cost $18

Step-by-step explanation: First you have to find the unit rate. So for every 7 attendees it costs $14, divide them both by the GCF which is 7. 14÷7=2

7÷7=1

So for every 1 attendee it is $2.

Now to figure out how much it would cost for 9 attendees, figure out what you have to do to 1 to get 9. Multiply it by 9.

And whatever you do to one number you have to do for the other. So $2 • 9 = $18

So for every 9 attendees it costs $18.

5 0
3 years ago
Does anyone know how to do this?
Lena [83]

Answer:

Each guest would get 6 party favors.

Step-by-step explanation:

First, we find out how many party favors Amy bought. 3 bags of 12 party favors equals 36 party favors (3x12)

So, divide 36 party favors by 6 guests, and you get the final answer of 6 party favors per guest.

Hope this helps!!

6 0
2 years ago
Kelly ate 3 apples. this represents 50% of the bag of apples.how many apples were originally in the bag?
Mariana [72]
There were 6 apples in the bag
7 0
3 years ago
Read 2 more answers
ANYEONESSSSSSSSSS???
Dmitriy789 [7]

Answer:

C. 2

Step-by-step explanation:

To solve slope, the formula is \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }. 9-3 is 6 and 5-2 is 3. So simplify 6/3 to 2.

Hope it's correct!

4 0
3 years ago
Which of the following expressions is equal to 1 divided by 16
faust18 [17]

Answer: 21

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What is the average rate of change of the function on the interval from x = 0 to x = 5?
    10·2 answers
  • Somebody please help me at this question !!!!! :)
    8·1 answer
  • The mass of a chocolate bar is 1800g. The density of my eh chocolate is 9g/cm cubed what is its volume?
    13·1 answer
  • How many times does 4 go in to 405
    6·2 answers
  • which ordered pair would form a proportional relationship with the point graphed below. A.(-10,30). B.(30,-15). C. ( -30,10). D.
    8·2 answers
  • PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!
    14·2 answers
  • PLEASE HELP!!! WILL GIVE BRAINLEST AWARD FOR MOST DESCRIPTIVE
    14·1 answer
  • PLEASE ANSWER THIS QUESTION ILL MARK YOU AS THE BRAINLIEST
    6·2 answers
  • How is the slope related to a unit rate?
    7·2 answers
  • Hi whats the answer<br> √548
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!