Answer:
4.5cubic feet of water weighs 281.061pounds
Explanation:
According to the question we are told that one cubic foot holds 7.48 gallons of water, hence;
1 cubic feet = 7.48gallons
Before we can determine the weight of 4.5cubic feet in pounds, let us forst know the weight in gallons. We can write;
4.5cubic feet = x
Divide both expression
1/4.5 = 7.48/x
Cross multiply
x = 4.5 * 7.48
x = 33.66gallons
Next is to convert 33.66gallons to pounds
1 gallon (gal) = 8.35 pound
33.66 gallons = y
Cross multiply
y = 33.66 * 8.35
y = 281.061pounds
Hence the 4.5cubic feet of water weighs 281.061pounds