document.write( "Question 1130424: A migrating bird flies 540 miles in 15 hours. How many miles does it fly in 7 ​hours? \n" ); document.write( "
Algebra.Com's Answer #747091 by ikleyn(52863)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "
\r\n" );
document.write( "The rate of flying is  \"540%2F15\" = 36 miles per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The distance flying in 7 hours is  36*7 = 252 miles.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Alternatively, you can solve the problem using proportion\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    \"540%2F15\" = \"x%2F7\",\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    x = \"%28540%2A7%29%2F15\".\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "You will get the same answer.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Notice that both parts of the proportion represent the rate of flying per hour.\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( "---------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "On proportions,  see the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Proportions\r
\n" ); document.write( "\n" ); document.write( "    - Using proportions to solve word problems \r
\n" ); document.write( "\n" ); document.write( "    - Using proportions to solve word problems in Physics \r
\n" ); document.write( "\n" ); document.write( "    - Using proportions to solve Chemistry problems\r
\n" ); document.write( "\n" ); document.write( "    - Using proportions to estimate the number of fish in a lake\r
\n" ); document.write( "\n" ); document.write( "    - HOW TO algebreze and solve these problems using proportions \r
\n" ); document.write( "\n" ); document.write( "    - OVERVIEW of lessons on proportions\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "These lessons were written specially for you. \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Read them and become an expert in this area.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Start from the very first lesson.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "-------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "On birds' speed when they migrate see interesting facts under these links\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "https://web.stanford.edu/group/stanfordbirds/text/essays/How_Fast.html\r
\n" ); document.write( "\n" ); document.write( "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730693/\r
\n" ); document.write( "\n" ); document.write( "https://www.audubon.org/news/9-awesome-facts-about-bird-migration\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Alan, I put these links partially for your attention !\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );