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AnnZ [28]
4 years ago
14

In what step is there first an error. Please explain the error, what misunderstandings the student has and

Mathematics
1 answer:
NARA [144]4 years ago
4 0

Answer:

step 2 is their first error

Step-by-step explanation:

they made the wrong calculations.

20-26=-6

-6+9=-34 +60

3=-34+60

all that's left to do is to add -34 and 60

3=26

they solved the left side of the equation and randomly subtracted 20 from the 60 and moved it to the left side. It was supposed to be -17. Then they moved -34 to the left side of the equation and added an x out of nowhere.

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Given that amount of first acid solution = 4 liters

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Given that amount of second  acid solution = 10 liters

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then effective amount of second solution = 0.4(10)


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Combining all those results gives equation

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Hence final answer is 0.05 or you can say 5%.



6 0
3 years ago
Read 2 more answers
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Step-by-step explanation:

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