Answer:
Step-by-step explanation: this is math not English
27 = 6 + 3n
-6 -6
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21 = 3n
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7 = n
Step-by-step explanation:
It takes 3 minutes, at 17 gallons per minute, for the tap to fill the tub, so 51 gallons of water flow into the tub.
The capacity of the tub is 46.5 gallons; so in 3 minutes 51-46.5 = 4.5 gallons have leaked. That's a rate of 4.5/3 = 1.5 gallons per minute.
The amount of time it will take the tub to drain at that rate is 46.5/1.5 = 31 minutes.
76 points/ 4 points per questions means he answered 19 questions correctly
plus the 10 he answered incorrectly
76/4+10=x
19+10=x
29=x
The answer is 5/6 or 0.8333...