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Greeley [361]
3 years ago
7

The local radio station played 9 hip-hop songs and 6 hard rock songs in one hour. What percent of the songs played during this h

our was hip-hop?
Mathematics
2 answers:
il63 [147K]3 years ago
8 0
60% was hip hop boom 
ladessa [460]3 years ago
5 0
60% i think but im not sure
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PLEASE EXPLAIN...WILL MARK BRAINLIEST FOR BEST ANSWER
Ira Lisetskai [31]

Answer:

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Step-by-step explanation:

a) If x liters are removed from a container with a volume of 50 L, the amount remaining in the container is (50 -x) liters. Of that amount, 40% is acid, so the acid in the container before any more is added will be ...

  0.40 × (50 -x)

The x liters are replaced with 100% acid, so the amount of acid that was added to the container is ...

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  a(x) = 20 +0.60x . . . . . liters of acid in the final mixture

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b) The quantity removed cannot be less than zero, nor can it be more than 50 liters. The useful domain of the function is 0 ≤ x ≤ 50. (liters)

The associated range is 20 ≤ a ≤ 50. (liters)

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c) As we found in part b, the amount of acid in the final mixture may range from 20 liters to 50 liters. So, the percentage of acid in the final mix will range from 20/50 = 40% to 50/50 = 100%. The mixture could be 50% acid, but is not necessarily.

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Please answer this for me. Thanks!
Vesna [10]

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otez555 [7]

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I got x = 1

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1/2(1) -3 \leq -1\\1/2 -3\leq -1\\-2.5\leq -1

And since -2.5 is less than -1 this statement is true. x does in fact equal 1

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