SOLUTION: The sign on the elevator in a seven-story building states that the maximum weight it can carry is 1500 pounds. As part of your work-study program, you need to move a large shipment

Question 251935: The sign on the elevator in a seven-story building states that the maximum weight it can carry is 1500 pounds. As part of your work-study program, you need to move a large shipment of books to the sixth floor. Each box weighs 60 pounds.
Let n represent the number of boxes placed in the elevator. You weigh 185 pounds. Write an expression that represents the total weight in the elevator. Using the expression in part a, write an inequality that can be used to determine the maximum number of boxes that you can place in the elevator at one time and solve.
Found 3 solutions by richwmiller, checkley77, stanbon:
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
185+60n<=1500
max number of boxes=21
60*21+185=1445
60*22+185=1505 22 boxes are over the limit by 5 lbs.

Answer by checkley77(12844)   (Show Source): You can put this solution on YOUR website!
1,500=185+60x
60x=1,500-185
60x=1,315
x=1,315/60
x=21.9 or 21 boxes is the max number of boxes in the elevator at one time.
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
The sign on the elevator in a seven-story building states that the maximum weight it can carry is 1500 pounds. As part of your work-study program, you need to move a large shipment of books to the sixth floor. Each box weighs 60 pounds.
Let n represent the number of boxes placed in the elevator. You weigh 185 pounds. Write an expression that represents the total weight in the elevator. Using the expression in part a, write an inequality that can be used to determine the maximum number of boxes that you can place in the elevator at one time and solve.
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Solve for "n":
60n + 185 = 1500
60n = 1315
n = 21.92
Rounding down the maximum number of boxes is 21.
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Cheers,
Stan H.
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