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Andru [333]
3 years ago
8

7n−4=31, n, minus, 4, equals, 31 n =n=n, equals

Mathematics
1 answer:
ziro4ka [17]3 years ago
6 0

Answer:

5

Step-by-step explanation:

7 times 5 equals 35 minus 4 equals 31

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The value of y varies inversely as the cube of x and y=1 when x=6. Find the value of y when x =2.
ch4aika [34]

Answer:

y=27 when x=2

Step-by-step explanation:

y varies inversely as the cube of x

y=k(1/X^3)

y=1 when x=6

y=k(1/X^3)

1=k(1/6^3)

1=k(1/216)

k=1÷1/216

K=1×216/1

k=216

find y when x=2

y=k(1/X^3)

y=216(1/2^3)

y=216(1/8)

y=216/8

y=27

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3 years ago
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2 years ago
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4 0
3 years ago
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There are 250 economy class seats on board. The airline sells some economy class seats at a discount price of $440 in advance an
Drupady [299]

Answer:

Check the explanation

Step-by-step explanation:

Cost of over reserving full cost tickets, Co = $440 ( empty seats as we cannot get even the discounted revenue)

Cost of under reserving Cu = 770-440 = $330 ( because you sell more discounted tickets)

Now critical ratio = Cu / (Cu+Co) = 330/770 = 0.42857

Now for above critical ratio ,z = -0.18 ( refer standard normal distribution table)

Optimal protection level = mean +z*standard deviation = 100-0.18*25 = 95.5 = 96

The possible costs include: all the above. You may need to provide compensation to passenger and make alternative travel arrangements. Also passenger won't be happy by over booking and their will be loss of good will.

3 0
3 years ago
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viva [34]

Answer:

C: 8

Step-by-step explanation:

8^3=512

if it was -8^3 it would equal -512

7 0
2 years ago
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