document.write( "Question 175109This question is from textbook harcourt math
\n" );
document.write( ": The sum of Jarod's age and Kayla's age is 21. Kayla is 5 years older than Jarod. How old are Kayla and Jarrod. Did x + 5=21. 21-5= 16. Still don't know how old anyone is. \n" );
document.write( "
Algebra.Com's Answer #130197 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Let j = Jarod's age now \n" ); document.write( "Let k = Kayla's age now \n" ); document.write( ": \n" ); document.write( "Write an equation for each sentence: \n" ); document.write( "\"The sum of Jarod's age and Kayla's age is 21.\" \n" ); document.write( "j + k = 21 \n" ); document.write( "; \n" ); document.write( "\" Kayla is 5 years older than Jarod.\" \n" ); document.write( "k = j + 5 \n" ); document.write( ": \n" ); document.write( "How old are Kayla and Jarrod. \n" ); document.write( ": \n" ); document.write( "from the above equation, take (j+5) and substitute it for k in the 1st equation \n" ); document.write( "j + (j+5) = 21 \n" ); document.write( "2j = 21 - 5 \n" ); document.write( "2j = 16 \n" ); document.write( "j = \n" ); document.write( "j = 8 yrs is Jerod's age \n" ); document.write( ": \n" ); document.write( "Use the 2nd equation to find k \n" ); document.write( ": \n" ); document.write( "Check solutions in the 1st equation \n" ); document.write( " |