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MaRussiya [10]
3 years ago
8

430 randomly selected light bulbs were tested in a laboratory, 224 lasted more than 500 hours. Find a point estimate of the prop

ortion of all light bulbs that last more than 500 hours
Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0
The estimated portion of light bulbs that last more than 500 hours will be
x=∑xn=224/430=0.521=52.1%
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We have 6 tents for 18 campers each tent holds 2 or 4 campers exactly how many of our tents hold 2
wolverine [178]

Answer:

  3 tents hold 2 campers

Step-by-step explanation:

The given relations can be expressed as a single equation in the number of 2-camper tents.

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Let x represent the number of 2-camper tents. Then the number of 4-camper tents is 6-x, and the total number of campers in tents is ...

  2x +4(6 -x) = 18

  -2x +24 = 18

  -2x = -6 . . . . . . subtract 24

  x = 3 . . . . . . . divide by -2

Exactly 3 tents hold 2 campers.

_____

<em>Additional comment</em>

The other 3 tents hold 4 campers.

Another way to consider this is to assume that all tents hold 2 campers, and then realize there are 18 -6×2 = 6 campers left over. If these are placed 2 per tent, then there will be 6/2 = 3 tents with 4 campers. The remaining 3 tents will have 2 campers.

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2 years ago
Cindy's Ceramics engaged in a like-kind exchange that resulted in a $3,000 gain. In addition to the like-kind property, Cindy al
irinina [24]

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True

Step-by-step explanation:

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4 years ago
A number is between -5 and -14. What is the least possible integer value of the number?
djyliett [7]
Hello!

An integer can be positive, negative, or zero. Given this, the least possible integer value of a number between -5 and -14 is -13.
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3 years ago
Two airplanes leave the same airport. One heads north, and the other heads east. After some time, the northbound airplane has tr
Fofino [41]

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Step-by-step explanation:

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3 years ago
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