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Sergio039 [100]
3 years ago
7

Elmer has a collection of 300300300 fossils. Of these, 21\%21%21, percent are fossilized snail shells.

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0
I believe that they typo meant 300 fossils of which 21% are snail shells.

Since % means per one hundred...

300(21/100)=63

Elmer has 63 fossilized snail shells.
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It takes 5 days to repair 1,250 meters of road. At this rate, how many days will it take to repair 8 kilometers of road?
dolphi86 [110]

Answer :

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6 0
2 years ago
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20 POINTS
SIZIF [17.4K]
Let get all the information.
Mean:394
Deviation:35
Looking for At Least 380 feet
To find the z score you take the wanted probality subtract the mean and divide by the deviation.
z=(380-394)/35.
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So far so good.
But when he looked at the table he looked at probability that the home runs are less then 380 feet.
From this table
http://www.stat.ufl.edu/~athienit/Tables/Ztable.pdf
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8 0
3 years ago
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horsena [70]

Answer:

The picture shows the answer on the graph

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Move constant to the right side and change its sign

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Add the numbers

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Answer:

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14-9 = 5

3 0
2 years ago
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