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3 years ago

I need help with a perimeter problem

Mathematics

1 answer:

adelina 88 [10]3 years ago

6 0

What is the permiter problems first?? all you need to do to find perimeter is multiply the length by the width

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The median of a data set 8, 21, 17, and 13 is 15. If 17 is changed to 18, what will be the new median? a. 15.5 c. 50 b. 17.5 d.

lubasha [3.4K]

Answer:

Option A) 15.5 is correct

The new median for the new data set is 15.5

Step-by-step explanation:

Given data set is 8,21,17,13

To find the median :

First order the given set of data into least to greatest

The ordered set is 8,13,17,21

Since the given set of data is even

We can take midvalues of data in the set

Median is the mean of two middle values in the data set

$Median=\frac{13+17}{2}$

$=\frac{30}{2}$

$=15$

Therefore Median=15 ( given )

Given that if 17 is changed to 18 then the given set of data 8,21,17,13 is changed into new set 8,21,18,13

To find the median :

First order the new set of data into least to greatest

The ordered set is 8,13,18,21

Since the given set of data is even

We can take two midvalues of new data in the set

Median is the mean of two middle values in the data set

$Median=\frac{13+18}{2}$

$=\frac{31}{2}$

$=15.5$

Therefore New Median=15.5

Therefore option A) 15.5 is correct

The new median for the new data set is 15.5

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3 years ago

Write an addition sentence that helps you solve 51 - 9

Sati [7]

Answer:

Step-by-step explanation:

hey 42+9=51 so this can be the ✔️answer

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A movie theater sends out a coupon for 75 percent off. Write an equation for the situation

ZanzabumX [31]

75%. Move the decimal to spots to the left so .78 then divided it by the cost of the movie ticket and that will be the cost of the ticket with the Collin

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3 years ago

Sarah walks to school, 1.5 miles in 30 minutes. what is the snswer to this

nevsk [136]

Answer: 3 mi/h

Step-by-step explanation:

Here we have to find the speed $V$ at which Sarah walks to school, knowing the distance $d$ she has walked and the time $t$ she expends.

So, in this case we can use the following equation:

$V=\frac{d}{t}$

Where:

$d=1.5 mi$

$t=30 min \frac{1 h}{60 min}=0.5 h$

Solving:

$V=\frac{1.5 mi}{0.5 h}$

$V=3 mi/h$ This is Sarah's speed

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3 years ago

A capacitor has plates of area

kumpel [21]

Answer:

6.1*10^-6

Step-by-step explanation:

Acellus

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3 years ago