Can someone write an algebraic expression for the number of times your heart beats in 1 minute?
Posted by adminDec 12
your heart beats n amounts of times every 15 seconds, write an algebraic expression for the number of times your heart beats in 1 minute.
2 comments
Comment by Max on December 12, 2009 at 9:18 pm
a minute is 60 seconds. we get the equation:
n/15 = x/60
multiply both sides by 60 to get
60n/15 = x
simplify to get x=4n.
So if your heart beats n times in 15 seconds, it beats 4n times in 4*15= 60 seconds.
Comment by hannah L on December 12, 2009 at 9:18 pm
so let x rep the number of heart beats
15x = 60
x = 4