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ankoles [38]
2 years ago
15

Try your best to awnser

Mathematics
2 answers:
podryga [215]2 years ago
7 0

Answer:

A

Step-by-step explanation:

Anton [14]2 years ago
4 0

Answer:

The answer is 96 I hope it helps you

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23.2/20

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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:
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Therefore, Serena needs 12 grams of the 40% solution and 8 grams of the 70% solution.
 
5 0
3 years ago
What is the difference between the smallest 6-digit whole number and the greatest four digit whole number
kupik [55]
First, lets start with the greatest 4-digit number. That would be 9,999.99999999999, with 9 to ∞, because the next number is a 5-digit number. The smallest 6-digit number is 100,000, because the number preceding 100,000 is a 4 digit number. To find difference, you have to subtract. 100,000 minus 9,999.9999 continued gives you 90,000.000000 to ∞ with a one with 1 at the end. You would write 90,000.01 with bar notation over only the 0 to indicate that it goes on to infinity.
6 0
3 years ago
Together, two apples have 1/5 gram of fat. How many apples have a total of 4 grams of fat?
4vir4ik [10]
20 apples

1/5=0.2

0.2×20=4
4 0
3 years ago
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