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Anonymous
4 and 1/4 hours
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To solve for h, first isolate 4h: T=4h+4z T-4z=4h Now divide both sides by 4. T/4-z=h
4h = 36 Therefore h = 36/4 h = 9
If you mean 4h+6 = 30 then h has a value of 6
1/4 of an hour is 15mins.
H is 30