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fgiga [73]
1 year ago
14

A random survey of the quality of city park is taken.sixty-five percent of the people surveyed were pleased with the condition o

f the parks.if 182 people were pleased,how many were surveyed
Mathematics
2 answers:
Maurinko [17]1 year ago
7 0

Answer:

280 people

Step-by-step explanation:

Given that 65% of people surveyed were pleased with condition of the park.

Given that those pleased were 182 people, then finding the total number of people surveyed will be;

65%= 182 people

100%= ?--------------------cross multiply

\frac{65}{100} *x=182\\\\\\65x=18200\\\\\\x=\frac{18200}{65} \\\\\\x=280

Lunna [17]1 year ago
3 0

Answer:  280

Step-by-step explanation:

Given : A random survey of the quality of city park is taken.

65% of the people surveyed were pleased with the condition of the parks.

here, 65%  can be written as 0.65.

Let x be the total number of people surveyed.

If 182 people were pleased, then we have

0.65x=182\\\\\Rightarrow\ x=\dfrac{182}{0.65}=280

hence, the number of people were surveyed = 280

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Z_ {13} = 0.5,\ Z_ {17} = 2.5

Step-by-step explanation:

The z-scores give us information about how many standard deviations from the mean the data are. This difference can be negative, if the data are n deviations to the left of the mean, or it can be positive if the data are n deviations to the right of the mean.

To calculate the Z scores, we calculate the difference between the value of the data and the mean and then divide this difference by the standard deviation.

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Z_{17} = \frac{17-12}{2}.

Z_{17} = 2.5

Then for x = 13:

Z_{13} = \frac{13-12}{2}.

Z_{13} = 0.5

Therefore the answer is:

Z_ {13} = 0.5,\ Z_ {17} = 2.5

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Thomas graphed the line that represents the equation y=34x.
zloy xaker [14]

Answer:

The ordered pairs represent points on the line are

(4, 3) ⇒ C

(2, \frac{3}{2} ) ⇒ D

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To find the ordered pairs represent points on the line, substitute x by the x-coordinate of each point, if the value of y equals the y-coordinate of the point, then the point is on the line.

∵ The equation is y = \frac{3}{4} x

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∵ The value of y does not equal the y-coordinate of the ordered pair

∴ The ordered pair (8, \frac{1}{6} ) does not represent a point on the line

∵ The ordered pair is (\frac{-2}{3}, \frac{1}{2} )

→ Substitute x by \frac{-2}{3}

∴ y = \frac{3}{4} (\frac{-2}{3})

∴ y = \frac{-1}{2}

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5 0
1 year ago
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Answer:

On the first hour she gathered 8 mushroons, on the second 15 mushroons and on the third she gathered 14 mushroons.

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Helen gathred a total of 37 mushroons in three hours. On the first hour she gathered "x" mushroons, on the second hour she gathered "x + 7" mushroons and on the third hour she gathered "x + 6". Therefore the sum of mushrrons she gathered on each hour should be equal to the total she gathered as shown below:

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8 0
1 year ago
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