To get the echo of a positive integer, we write it twice in a row without a space. For example, the echo of 2022 is 20222022. Is
1 answer:
The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281.
<h3>What echo number is a perfect square</h3>
An <em>echo</em> number has a <em>perfect</em> square if its square root is also a <em>natural</em> number. After some iterations we found that <em>echo</em> number 20222022202220222022 is a <em>perfect</em> square:
The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281.
To learn more on natural numbers, we kindly invite to check this verified question: brainly.com/question/17429689
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The difference in price per passenger for a group of 16 versus a group of 10 is $26.25
<h3>What is an equation?</h3>An equation is an expression that shows the relationship between two or more number and variables.
From the graph:
The cost for a group of 16 friends is $2500, while for a group of 10 friends is $1300.
Cost per passenger for 16 friend = $2500 / 16 = $156.25
Cost per passenger for 10 friend = $1300 / 10 = $130
The difference in price = $156.25 - $130 = $26.25
The difference in price per passenger for a group of 16 versus a group of 10 is $26.25
Find out more on equation at: brainly.com/question/2972832
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