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
Solve Ax-By=c for y how do you solve this
Rainbow [258]

Answer:

y = - c/B + Ax/B

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

5 0
2 years ago
1/3 X 12 = 12 X ___ = __
valkas [14]
1/3=4 hop this help you
8 0
2 years ago
A fair coin is flipped 5 times
wolverine [178]

Answer:

2/5

Step-by-step explanation:

The answer is common sense.

4 0
2 years ago
(2n-9)-(-2.4n+4) Please help!
Furkat [3]

Answer: =4.4n-13

Step-by-step explanation:

Let's simplify step-by-step.

2n−9−(−2.4n+4)

Distribute the Negative Sign:

=2n−9+−1(−2.4n+4)

=2n+−9+−1(−2.4n)+(−1)(4)

=2n+−9+2.4n+−4

Combine Like Terms:

=2n+−9+2.4n+−4

=(2n+2.4n)+(−9+−4)

=4.4n+−13

4 0
3 years ago
The picture below shows Annie and her younger brother Tommy’s money. They want to combine their money to buy something together.
Inga [223]

Answer:

$5.47

Step-by-step explanation:

Given data:

Annie has 4 dollar , 11 dimes, 4 pennies.

Tommy has 3 dimes, 3 pennies.

To add the money, let us first convert dime and penny into dollar.

1 dollar = $1

11 dime = $1.1

4 penny = $0.04

3 dime = $0.3

3 penny = $ 0.03

Total money = Annie’s money + Tommy’s money

                     = $4 + $1.1 + $ 0.04 + $0.3 + $0.03

                     = $5.47

So, they have $5.47 in all.

5 0
3 years ago
Read 2 more answers
Other questions:
  • the video states that 56% of high school students report using sunscreen in 2011, while 68% reported using sunscreen in 2001, le
    9·1 answer
  • Solve for x please need help need answer ASAP
    9·1 answer
  • The surface area of the box of cereal displayed is 2x^2+48x+88. What is the value of x if the box of cereal has a total surface
    5·1 answer
  • Select three unit rates that can be used To describe the price of juice one dollar for 12 ounces $1.59 for a pint two dollars fo
    7·1 answer
  • All acute angles measure less than 90 degrees.
    15·2 answers
  • Fernando purchased 1 pound of dried cranberries and 4 pounds of almonds to make a trail mix. Cranberries cost $4 per pound and a
    14·2 answers
  • What is the equivalent ratio for 3:4​
    14·2 answers
  • PLEASE HELP, WILL MARK AS BRAINLIEST !! (QUESTION IN THE PICTURE)
    7·1 answer
  • PLS PLS PLS HELP 100 POINTS no scamming
    12·2 answers
  • The bearing of point Y from point X is 070°.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!