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PLEASE HELP ME !!!!!!!!!!!!!!!!!
LET ME KNOW IF ITS RIGHT

PLEASE HELP ME !!!!!!!!!!!!!!!!! LET ME KNOW IF ITS RIGHT-example-1
User Liisa
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1 Answer

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Okay. So the song lasts 221 seconds. 45 seconds have already beem done and 22 seconds is done in an hour. The equation would be set up like this:

45 + 22h = 221

Just by looking at the answer choices, A is already eliminated because it doesn't incorportate the 45 seconds. B does include the 45 seconds, but it subtracts, and in this case, we add time, not subtract. D is eliminated, because the h variable does not go with 45. The only equation that works is C and when you solve it, you get 8 hours. The answer is C.

Note: you solve the equation above by subtract 45 from both sides to get 176 = 22x, and dividing both sides by 22 to get x = 8.
User Johari
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