document.write( "Question 536204: 1st question) marks dad is 3 times as old as mark . The sum of their ages is 48 , how old is mark?\r
\n" ); document.write( "\n" ); document.write( "most importantly i need the expression (: thankyouu\r
\n" ); document.write( "\n" ); document.write( "2nd question. )
\n" ); document.write( "bilal sister is 3 years younger than bilal , bilal's mother is 3 times than bilal's age , bilal's father is 4 years old then bilal's mother , the sum of all ages is 89 , how old was bilal's mother when he was born? \n" ); document.write( "

Algebra.Com's Answer #352205 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+d+\"$ = Dad's age
\n" ); document.write( "Let $\"+m+\"$ = Mark's age
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"+d+%2B+m+=+48+\"$
\n" ); document.write( "(2) $\"+d+=+3m+\"$
\n" ); document.write( "---------
\n" ); document.write( "Substitute (2) into (1)
\n" ); document.write( "(1) $\"+3m+%2B+m+=+48+\"$
\n" ); document.write( "(1) $\"+4m+=+48+\"$
\n" ); document.write( "(1) $\"+m+=+12+\"$
\n" ); document.write( "and,
\n" ); document.write( "(2) $\"+d+=+3m+\"$
\n" ); document.write( "(2) $\"+d+=+36+\"$
\n" ); document.write( "Dad is 36 and Mark is 12
\n" ); document.write( "--------------------
\n" ); document.write( "Let $\"b\"$ = Bilal's age now
\n" ); document.write( "Let $\"s\"$ = Bilal's Sister's age now
\n" ); document.write( "Let $\"m\"$ = Mother's age now
\n" ); document.write( "Let $\"f\"$ = Father's age now
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"+b+%2B+m+%2B+f+=+89+\"$
\n" ); document.write( " $\"+s+=+b+-+3+\"$
\n" ); document.write( "(2) $\"+m+=+3b+\"$
\n" ); document.write( "(3) $\"+f+=+m+%2B+4+\"$
\n" ); document.write( "How old was bilal's mother when he was born?
\n" ); document.write( "This is the same as \" What is $\"+m+-+b+\"$ ?\"
\n" ); document.write( "(2) $\"+m+=+3b+\"$
\n" ); document.write( " $\"+m+-+b+=+3b+-+b+\"$
\n" ); document.write( " $\"+m+-+b+=+2b+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+b+%2B+m+%2B+m+%2B+4+=+89+\"$
\n" ); document.write( "(1) $\"+b+%2B+3b+%2B+3b+%2B+4+=+89+\"$
\n" ); document.write( "(1) $\"+7b+=+85+\"$
\n" ); document.write( "(1) $\"+b+=+85%2F7+\"$
\n" ); document.write( " $\"+m+-+b+=+2b+\"$
\n" ); document.write( " $\"+m+-+b+=+170%2F7+\"$
\n" ); document.write( " $\"+m+-+b+=+24.286+\"$
\n" ); document.write( " $\"+.286%2A12+=+3.428+\"$
\n" ); document.write( "His mother was 24 and 3 months old
\n" ); document.write( "Hope I got it \n" ); document.write( "

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