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3 years ago

a dog weighs 8 times as many as his cat. together the two pets weigh 54 pounds. how much does the dog weigh?

2 answers:

4 0

The cat would weigh 6.75 pounds because 54( the total weight)divided by 8( the dog's weight) equals 6.75( the cat's weight)

Anna [14]3 years ago

3 0

54/9=6
the dog weighs 6*8 is 48 pounds
and the cat weighs 6 pounds

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A 500-gallon tank initially contains 220 gallons of pure distilled water. Brine containing 5 pounds of salt per gallon flows int

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Step-by-step explanation:

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$V_{tank} = 220\\\frac{dV_{tank}(t)}{dt} = 0$

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The solution of this equation is:

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$c(8) = 0.166 \frac{pounds}{gallon}$

The instantaneous amount of salt in the tank is:

$m_{salt} = (0.166 \frac{pounds}{gallon}) \cdot (220 gallons)\\m_{salt} = 36.52 pounds$

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