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____ [38]
2 years ago
8

HEY GUYS CAN SOMEONE PLEASE HELP I NEED TO PASS THIS!! THANKS SO MUCH FOR THE HELP!

Mathematics
1 answer:
notsponge [240]2 years ago
5 0

Answer:

I believe the answer would be C

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Suppose 12 quarts of pure antifreeze is mixed with 8 quarts of a solution that is 72% antifreeze. Answer the questions below. Do
ra1l [238]
(a)  

12+0.72(8)

12+5.76

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(b)

100(12+8(.72))/(12+8)

100(12+5.76)/20

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4 0
3 years ago
The product of a number and negative three is twenty-seven. Which of the following could represent this statement?
Arturiano [62]

Answer:

<h2>-3n = 27</h2>

Step-by-step explanation:

The product of a number and negative three is twenty-seven.

<em>n - </em><em>a number</em>

the product of a number and negative three: <em>n · (-3) = -3n</em>

5 0
3 years ago
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Serena is making an experiment. For that, she needs 20 grams of a 52% solution of salt. She has two large bottles of salt water:
Fudgin [204]
X + y = 20 --> eqn 1
The second equation would be the mass balance shown below:
(x)(0.40) + y(0.70) = 20(0.52) --> eqn 2
Rearranging eqn 1,x = 20 - ySubstitute this to eqn 2:
(20 - y)(0.40) + y(0.70) = 20(0.52)Solve for y,y = 8 grams Finally, solve for x.x = 20 - 8 = 12 grams
Therefore, Serena needs 12 grams of the 40% solution and 8 grams of the 70% solution.
 
5 0
3 years ago
PLEASE HELP
r-ruslan [8.4K]
A dot plot would do this best and for every number that is the same put an X above that number 

6 0
3 years ago
Answer quickly please!<br><br> - 4(2.5x - 1.25) - 3x
Margarita [4]

Answer:

-13x+5

Step-by-step explanation:

It would be greatly appreciated if you gave me brainlest

6 0
2 years ago
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