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shepuryov [24]
3 years ago
10

Sarah’s neighbor offers to pay her $5 for every shark tooth she finds on the beach. After collecting only three shark’s teeth, S

arah decides to share the opportunity with her friend John. Sarah can find shark teeth twice as fast as John, but she can earn even more money with his help.
Sarah can use the expression 5(2j + 3 + j) to represent the amount of money she can earn. Write a few sentences to end Sarah’s story. How many shark teeth did she find? How many shark teeth did John find? How much money did Sarah earn?
Mathematics
1 answer:
In-s [12.5K]3 years ago
3 0

Answer:

Sarah would have $15 dollars.

Step-by-step explanation:

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kherson [118]

Answer:

Answer is √202 or 14.21267

Step-by-step explanation:

d^2=(4−(−7))2+(5−(−4))2

d^2=(11)2+(9)2√

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d^2=2–√202

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8 0
2 years ago
Define the random variables X and X in words. X is the amount of time an individual waits at the courthouse to be called for ser
densk [106]

<u>Question</u>

Suppose that a committee is studying whether or not there is excessive time waste in our judicial system. It is interested in the mean amount of time individuals spend at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was 4 hours with a sample standard deviation of 1.2 hours. Define the random variables X and \bar{X} in words.

Answer:

(B)

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  • \bar{X}  is the mean wait time for a sample of individuals.

Step-by-step explanation:

The random variable X is the amount of time for which each of the prospective juror waits at the courthouse before being called for service.

\bar{X}  is the mean wait time for a the given sample of individuals. In the case given,

5 0
2 years ago
What expression gives the distance between the points (4,6) and (7,-3)?
solniwko [45]

Answer:

\sqrt{(-3^2-6)+(7^2-4^2)}

Step-by-step explanation:

Use the form: \sqrt{(x^2-x^1)+(y2-y1)^2

so: \sqrt{(-3^2-6)+(7^2-4^2)}

6 0
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Ostrovityanka [42]

Answer:

yes

Step-by-step explanation:

6 0
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miss Akunina [59]

Answer:

x + 4 < 12

Step-by-step explanation:

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