Solve the problem.One conveyor belt can move 1000 boxes in 6 minutes. Another can move 1000 boxes in 8 minutes. If another conveyor belt is added and all three are used, the boxes are moved in 3 minutes. How long would it take the third conveyor belt alone to do the same job?
A. 1
min
B. 24 min
C. 
min
D. 
min
Answer: B
Mathematics
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A. 9.8% B. 12.4% C. 17.5% D. 15.7%
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A. no solution; ? B. {(8, -7)} C. {(-8, -7)} D. {(8, 7)}
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Solve the proportion for the item represented by a letter.
?
?
__________
Fill in the blank(s) with the appropriate word(s).
Mathematics