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ladessa [460]
3 years ago
14

The mean monthly rent of students at Oxnard University is $890 with a standard deviation of $206. John's rent is $1,395. What is

his standardized z-score?
Mathematics
2 answers:
mezya [45]3 years ago
8 0

Answer:

$299

Step-by-step explanation:

Rent+standard deviation 890+206= $1,096

John's rent: $1,395

Z-score: 1395 - 1096=$299

likoan [24]3 years ago
6 0

Answer: 2.4515

Step-by-step explanation:

Given : The mean monthly rent of students at Oxnard University is \mu=\$890 with a standard deviation of \sigma=\$206

Using the formula , z=\dfrac{x-\mu}{\sigma}, we have the  standardized z-value for x= 1395 as

z=\dfrac{1395-890}{206}=2.45145631068\approx2.4515\ \text{ [To the nearest four decimal places.]}

Hence, the standardized z-score = 2.4515

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1 tree makes approximately 230 newspapers. Estimate (by rounding each number to 1 S.F.) how many newspapers 56 trees will make.
g100num [7]

Answer:

56 trees will make 10000 newspapers.

Step-by-step explanation:

Given:

One tree makes approximately 230 newspapers.

Now, for estimating how many newspapers will be made with 56 trees.

By multiplying 56 trees with 230 newspapers we get,

56\times230=12880.

And, rounding 12880 to one significant number (1 S.F.) is 10000.

Therefore, 56 trees will make 10000 newspapers.

6 0
3 years ago
Read 2 more answers
Which equation has x=2/3 as a solution and why?
eduard

There are an infinite number of different equations that have
x=2/3  as the solution, or as one of several solutions.

You didn't show us your list of choices, so we can't help you
pick the right one.

Just take each choice, one at a time.  Write ' 2/3 ' in place of 'x'
in each equation, and simplify everything.  You'll wind up with
one equation that's true, and the others will say something that's
nonsense. 

The one that's true is the one that has  x=2/3  as its solution.

6 0
3 years ago
Which expression can be used to find 15% of 20?
dezoksy [38]

Answer:

Expression:  0.15 * 20

Equation: 0.15 * 20 = 3

Step-by-step explanation:

This expression was found by dividing 15% by 100 to convert it into a decimal (0.15) that can be used to multiply with 20 to get your answer.

5 0
3 years ago
Why would a railway be important to either side in the civil war?
GaryK [48]

Answer:

Either side would have been improved by a railway so they could get more ammo in and get food in and also get the sick and wonded out to get medical attention

Step-by-step explanation:

7 0
2 years ago
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Brandon just bought a new coffee table. The length of the coffee table is 5 more than 3 times the width. If the perimeter of the
a_sh-v [17]

Answer:

The length is 23 inches and the width is 6 inches.

Step-by-step explanation:

The perimeter for a rectangular shape is represented as:

P = 2L + 2W, where L represents length and W represents width

We can represent the length as:

L = 3W + 5

Substituting this into the perimeter function, we get:

P = 2 (3W + 5) + 2W

Substituting 58 for P, we get:

58 = 2 (3W + 5) + 2W

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58 = 8W + 10

58 - 10 = 8W + 10 - 10

48 = 8W

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With 6 being the established value for the width, we can substitute this back into the equation for length:

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To check our work, we can substitute both the width and length into the perimeter equation:

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58 = 2(23) + 2(6)

58 = 46 + 12

58 = 58

Therefore, length is 23 inches and the width is 6 inches.

5 0
3 years ago
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