Problem 51808. Determine when snow started

Created by ChrisR

Solve Later

{"parts":[{"partUri":"/matlab/document.xml","contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>R.P. Agnew posed the following problem: It starts snowing in the morning and continues steadily throughout the day. A snowplow that removes snow at a constant rate starts plowing at noon. It plows 2 miles in the first hour and 1 mile in the second.</w:t></w:r><w:r><w:t>  </w:t></w:r><w:r><w:t>What time did it start snowing?</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Write a function to solve this problem. The inputs will be the time the snowplow started (given as a string), two consecutive time intervals </w:t></w:r><w:customXml w:element=\"equation\"><w:customXmlPr><w:attr w:name=\"displayStyle\" w:val=\"false\"/><w:attr w:name=\"altTextString\" w:val=\"dt1\"/></w:customXmlPr><w:r><w:t>\\Delta t_1</w:t></w:r></w:customXml><w:r><w:t> and </w:t></w:r><w:customXml w:element=\"equation\"><w:customXmlPr><w:attr w:name=\"displayStyle\" w:val=\"false\"/><w:attr w:name=\"altTextString\" w:val=\"dt2\"/></w:customXmlPr><w:r><w:t>\\Delta t_2</w:t></w:r></w:customXml><w:r><w:t>, and the distances </w:t></w:r><w:customXml w:element=\"equation\"><w:customXmlPr><w:attr w:name=\"displayStyle\" w:val=\"false\"/><w:attr w:name=\"altTextString\" w:val=\"dx1\"/></w:customXmlPr><w:r><w:t>\\Delta x_1</w:t></w:r></w:customXml><w:r><w:t> and </w:t></w:r><w:customXml w:element=\"equation\"><w:customXmlPr><w:attr w:name=\"displayStyle\" w:val=\"false\"/><w:attr w:name=\"altTextString\" w:val=\"dx2\"/></w:customXmlPr><w:r><w:t>\\Delta x_2</w:t></w:r></w:customXml><w:r><w:t> traveled in the first and second time intervals, respectively. Return the time that the snow started, rounded to the nearest minute, as a string.</w:t></w:r></w:p></w:body></w:document>","relationship":null}],"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","target":"/matlab/document.xml","relationshipId":"rId1"}]}

<div style = "text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; "><div style="block-size: 135.25px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 67.625px; transform-origin: 407px 67.625px; vertical-align: baseline; "><div style="block-size: 63px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.5px; text-align: left; transform-origin: 384px 31.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 367.333px 7.91667px; transform-origin: 367.333px 7.91667px; unicode-bidi: normal; "><span style="">R.P. Agnew posed the following problem: It starts snowing in the morning and continues steadily throughout the day. A snowplow that removes snow at a constant rate starts plowing at noon. It plows 2 miles in the first hour and 1 mile in the second.</span></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 3.88333px 7.91667px; transform-origin: 3.88333px 7.91667px; unicode-bidi: normal; "><span style="">  </span></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 95.2917px 7.91667px; transform-origin: 95.2917px 7.91667px; unicode-bidi: normal; "><span style="">What time did it start snowing?</span></span></div><div style="block-size: 63.25px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.625px; text-align: left; transform-origin: 384px 31.625px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 380.275px 7.91667px; transform-origin: 380.275px 7.91667px; unicode-bidi: normal; "><span style="">Write a function to solve this problem. The inputs will be the time the snowplow started (given as a string), two consecutive time intervals </span></span><span style="vertical-align:-6px"><img src="data:image/png;base64,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" alt="dt1" style="width: 23px; height: 20px;" width="23" height="20"></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 15.5583px 7.91667px; transform-origin: 15.5583px 7.91667px; unicode-bidi: normal; "><span style=""> and </span></span><span style="vertical-align:-6px"><img src="data:image/png;base64,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" alt="dt2" style="width: 23px; height: 20px;" width="23" height="20"></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 60.675px 7.91667px; transform-origin: 60.675px 7.91667px; unicode-bidi: normal; "><span style="">, and the distances </span></span><span style="vertical-align:-6px"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADMAAAAoCAYAAABTsMJyAAABrklEQVRoge2XcdGDMAzFfx5wgAEMoGAKcICDOZiFaZgEPGChGmZh3x8h18AGaws7xr6+u97t1jbNy0vSAhkZGRn/GQ1Q7e3EFiiAB3Db25EtcEbIPIByZ19W444nc9nZl1Vo8EQeCLHDquOAHug4uDo14vxpGErGIU3hUOgQxxUOT6iNsFMgwTgjAZrOtcPcx1Dx7LStnxB1SqSdd/gmYvdVjJtLs5HvT7gOB1mHi8nhpwh7tr3Xgy2HV6XjQ42lZL7QrVN9hE1VWtXuiEvVZKjDr9JIiaaoo6reEeU/Dk2lpcOueDJdhO2b2ReSUickFWMCNoIW+dKjcqpO6AO0NXuWmkeNpHiK+iM4wqJtL9HQB6hVdKlzaXD0jCQyqkrIZr1QQ9OmQQKldRNSM6vIdMR1KHuJLj1xqmFtja8bt7De+pNERiN9GX6HDJvXcw/QAgmQppWtG11/m3E4mYzN59Sh6lzw90jPWLVqsv7KfMolkZl2p9ShTxX736vm4N7MryJTIxflFqM09uY6VvlmfhWZb0Um8634KTI9P0CmYnyH9Qihw32qZ2RkZGQcG3/o49PR0PQSVQAAAABJRU5ErkJggg==" alt="dx1" style="width: 25.5px; height: 20px;" width="25.5" height="20"></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 15.5583px 7.91667px; transform-origin: 15.5583px 7.91667px; unicode-bidi: normal; "><span style=""> and </span></span><span style="vertical-align:-6px"><img src="data:image/png;base64,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" alt="dx2" style="width: 25.5px; height: 20px;" width="25.5" height="20"></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 184.625px 7.91667px; transform-origin: 184.625px 7.91667px; unicode-bidi: normal; "><span style=""> traveled in the first and second time intervals, respectively. Return the time that the snow started, rounded to the nearest minute, as a string.</span></span></div></div></div>

Solve

Solution Stats

7 Solutions
3 Solvers

Last Solution submitted on Jul 07, 2021

Last 200 Solutions

Problem Comments

Problem Recent Solvers3

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 51808. Determine when snow started

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers3

Suggested Problems

More from this Author157

Problem Tags

Community Treasure Hunt

Problem 51808. Determine when snow started

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers3

Suggested Problems

More from this Author157

Problem Tags

Community Treasure Hunt

Players