Answer :
Desk weight = d
Bookcase weight = b
b = 34
3d + b = 157
3d + 34 = 157
D = 41
Bookcase weight = b
b = 34
3d + b = 157
3d + 34 = 157
D = 41
Final answer:
The question pertains to basic algebra where you subtract the weight of the bookcase from the total weight to find out the total weight of the desks. Then divide the total weight of the desks by the number of desks to determine the weight of each desk, which is 41 lbs.
Explanation:
The subject for this problem is algebra, a subfield of Mathematics. It asks about the weight of three desks when provided with the total weight of the desks and a bookcase and the weight of just the bookcase. Begin by understanding that the weight of the desks and the bookcase together is 157Ib, and the bookcase alone weighs 34Ib.
To find out how much the desks weigh, we simply subtract the bookcase's weight from the total weight. So, 157Ib - 34Ib gives us 123Ib. This is the combined weight of all three desks.
To find the weight of one desk, we can take the total weight of the desks and divide it by the number of desks which is 3. So, 123Ib divided by 3 gives us 41Ib per desk. Hence, each desk weighs 41 pounds.
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