A survey of 120 students found 100 like music, 80 like dancing, and 75 like both. How many like music or dancing (or both)?
1 answer:
Answer:
75 students out of 120
Step-by-step explanation:
75/120
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Explanation:
Kadisha's method works because 15% is 3 times 5%, and both amounts are computed on the amount of the bill before tax is added.
Answer:
z=10
10-5z=-4z
10=-4z+5z
10=z
I think k equals negative 2, or -2.<span>
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This equation does not have an answer