document.write( "Question 62302: Heres the question....Doctors use the term maximum heart rate when reffering to the quantity found by starting with 220 beatsper min. and subtracting1 beat per min. for each year of a persons age. Doctors recomm. exercising 3 or 4 times each week for at least 20 min. with you heart rate increased from its resting heart rate (RHR) to its training heart tate (THR),where THR=RHR+.65(MHR-RHR)
\n" ); document.write( "Which of the following is closet to thr THR of a 43 yr old whos RHRus 54 beats per min?
\n" ); document.write( "

Algebra.Com's Answer #43280 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
age = 43
\n" ); document.write( "RHR = 54
\n" ); document.write( "MHR = 220 - 1*age
\n" ); document.write( "MHR = 220 - 43
\n" ); document.write( "MHR = 77
\n" ); document.write( "THR = RHR + .65(MHR - RHR)
\n" ); document.write( "THR = 54 + .65(77 - 54)
\n" ); document.write( "THR = 54 + 14.95
\n" ); document.write( "THR = 68.95 beats per min
\n" ); document.write( "
\n" );