Mrs.Brown gives two tests to her class. 30% of the class passed both tests and 45% of the class passed the first test. What perc
ent passed the second test given that they passed the first test?
1 answer:
Answer:
15%
30 percent passed BOTH tests.....Only 15% passed ONLY first test
30/(30+15) = 67% of those who passed the first test ALSO passed the second test.
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The answer is that y is equal to zero
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2x+3y=12
Subtract by 2x
3y=-2x+12
Divide by 3
y=-2/3x+4
Answer:
20 is total
1/4 of 20 = 5
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