Question #b6cbe

1 Answer
Jim G.
Jul 28, 2017

#"see explanation"#

Explanation:

#"initial amount "=50" were infected"#

#"1 week later " =50+6%" of 50"=50+3=53#

#"the original amount of 50" -=100%#

#rArr50+6%#

#=50(100+6)%=50(106)%=50(106/100)=50xx1.06#

#rArr1.06xx50=53#

#"this represents the original amount plus 6 % of the "#
#"original amount"#

#"Similarly"#

#"2weeks later "=53+6%" of 53" =56.18#

#"or "50xx(1.06)^2=56.18#

#"note if it was a 6% decrease then"#

#"multiplying factor "=(100-6)%=94/100=0.94#

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