document.write( "Question 657198: The number is less than 30
\n" ); document.write( "A multiple of 5
\n" ); document.write( "and the sum of the digit is 7
\n" ); document.write( "what number is it? \n" ); document.write( "

Algebra.Com's Answer #409785 by MathLover1(20850) $\"\"$ $\"About$

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The number is less than $\"30\"$ \r
\n" ); document.write( "\n" ); document.write( "A multiple of $\"+5\"$
\n" ); document.write( "and the sum of the digit is $\"7\"$ ....tells us that number is two digit number\r
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\n" ); document.write( "\n" ); document.write( "if the sum of the digit is $\"7\"$ , then digits could be $\"0\"$ and $\"7\"$ , $\"1\"$ and $\"6\"$ , $\"2\"$ and $\"5\"$ , $\"3\"$ and $\"4\"$ \r
\n" ); document.write( "\n" ); document.write( "since the number is a multiple of $\"+5\"$ , the digit on place of $\"ones\"$ must be $\"+5\"$ or $\"0\"$ because only numbers which ends with $\"+5\"$ or $\"0\"$ are divisible by $\"5\"$ \r
\n" ); document.write( "\n" ); document.write( "now, tens could be $\"1\"$ , $\"2\"$ , $\"3\"$ , $\"4\"$ , $\"6\"$ , or $\"7\"$ \r
\n" ); document.write( "\n" ); document.write( "since the number is less than $\"30\"$ , we can eliminate $\"4\"$ , $\"6\"$ , and $\"7\"$ \r
\n" ); document.write( "\n" ); document.write( "so, the number could be $\"10\"$ , $\"15\"$ , $\"20\"$ , or $\"25\"$ \r
\n" ); document.write( "\n" ); document.write( "as you can see, all of them are solutions; all of them are less then $\"30\"$ and multiple of $\"+5\"$ \r
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