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Naya [18.7K]
4 years ago
7

A farmer performs an experiment to find the amount of fertilizer needed to increase crop yields. She uses different

Mathematics
1 answer:
Ksenya-84 [330]4 years ago
6 0

Answer:

C.

Step-by-step explanation:

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A jar contains n nickels and d dimes. There are 28 coins in the jar,and total value of the coins is $2.20. How many nickels and
Harman [31]
N + d = 20 (there are a total of 20 nickels and dimes).05n + .1d = 1.4 (total change equals $1.40)
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The experimental probability of seeing a hawk at the Avian Viewing Center on any given day is 20%. If Allison visits the center
IgorC [24]

The experimental probability is, as the name suggests, a probability based on observation. If we say that the experimental probability of seeing a hawk at the Avian Viewing Center on any given day is 20%, it means that someone has visited the center for many days, and at the end of this experiment he has met hawks on 20% of the days, i.e. one out of five days.

If we assume that these measurement are trustworthy, we can assume that Allison will also see a hawk on one fifth of the days.

Since she will visit the center for 240, she should expect to see a hawk on one fifth of these days, i.e.

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