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Q22:
A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office.In how many ways can the company assign 3 employees to 2 different offices?
A.5
B.6
C.7
D.8(D)why?
E.9
Q11:
A certain business produced x rakes each month form November through February and shipped x/2 rakes at the beginning of each month from March through October.The business paid no storage costs for the rakes from November through February, but it paid storage costs of $0.10 per rake each month from March through October for the rakes that had not been shipped.In terms of x, what was the total storage cost, in dollars, that the business paid for the rakes for the 12 months form November through October?
A.0.40x
B.1.20x
C.1.40x
D.1.60x
E.3.20x
the answer is C but I choose B
Q11:
A certain business produced x rakes each month form November through February and shipped x/2 rakes at the beginning of each month from March through October.The business paid no storage costs for the rakes from November through February, but it paid storage costs of $0.10 per rake each month from March through October for the rakes that had not been shipped.In terms of x, what was the total storage cost, in dollars, that the business paid for the rakes for the 12 months form November through October?
A.0.40x
B.1.20x
C.1.40x
D.1.60x
E.3.20x
the answer is C but I choose B |
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发表于 2011-10-4 19:05:05
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