lid425
contestada

a magazine has 5580000 subscribers this year. This number is down 7% from last year. How many subscribers were there last year?

Respuesta :

kittysage
[tex]5580000=0.07\times\alpha[/tex] being that [tex]\alpha[/tex] is the original value of subscribers the previous year.
To find, divide: [tex]558000/0.07\approx79714285.71[/tex] which rounds to [tex]79714286[/tex] subscribers.
irspow
Let s=number of subscribers last year.

s(100-7)/100=5580000

93s/100=5580000  multiply both sides by 100

93s=558000000  divide both sides by 93

s=6000000  (that's 6 million subscribers last year)

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