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zvonat [6]
3 years ago
15

A service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with t

wo hoses. Let X denote the number of hoses being used on the self-service island at a particular time, and let Y denote the number of hoses on the full-service island in use at that time. The joint pmf of X and Y appears in the accompanying tabulation
Mathematics
1 answer:
Annette [7]3 years ago
8 0

Answer:

ANSWER LINK

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Write the following as an inequality.
Ilia_Sergeevich [38]

Answer:

  -2 < w ≤ 6

Step-by-step explanation:

The inequalities you're asked to combine are ...

  -2 < w

  6 ≥ w

Turn one of these around so the "arrows" point in the same direction. (My preference is that they point to the left.) Now you have ...

  -2 < w

  w ≤ 6

You combine these by putting w in the middle:

  -2 < w ≤ 6

_____

<em>Alternate solution</em>

I like the above solution because it puts the components of the expression in the same (left-right) order as they appear on a number line. However, both inequalities can be turned around to get ...

  6 ≥ w > -2

6 0
3 years ago
Mr. Robins earns a commission on each airfare he books. At the end of the day, he had booked $208.60 worth of airfare and earned
Marina86 [1]

Answer:

  15%

Step-by-step explanation:

His rate is ...

  rate = commission/sales · 100% = 31.29/208.60 · 100%

  rate = 15%

Mr. Robins' commission rate is 15% of bookings.

3 0
3 years ago
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Elton is a candle maker. Each 15 cm long candle he makes burns evenly for 6 hours if Elton makes a 45 cm long candle, how long w
tatuchka [14]

The candle would burn for 18 hours.

45 / 15 = 3

If the candle is three times longer than normal, it will burn three times longer than normal.

3 x 6 = 18


7 0
3 years ago
PLEASE PLEASE HELP the question is below
zmey [24]

Answer:

D)90

Step-by-step explanation:

First you work out 3^4 which is 81.

Then add 9 to it and it becomes 90.

5 0
3 years ago
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The coordinates of point A are (-5,p) and the coordinates of point B are (7,10). The midpoint of the linear segment AB has coord
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Answer:none of the options is correct

the answer is (5,0)

Step-by-step explanation:

3 0
2 years ago
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