Problema Solution
a company planning an advertising campaign must pay $4000 for each newspaper ad and $2000 for each radio commercial. the company plans to use 30 fewer radio commercials than newspaper ads and allocates $600,000 for the ads and the commercials. how many radio commercials will be in the advertising campaign?
Answer provided by our tutors
let
a = the number of newspaper ads in the campaign
c = the number of radio commercials in the campaign
the company plans to use 30 fewer radio commercials than newspaper
c = a - 30
the company allocates $600,000 for the ads and the commercials
4000a + 2000c = 600000 divde both sides by 2000
2a + c = 300
by solving the system of equations
c = a - 30
2a + c = 300
we find
a = 110 newspaper ads
c = 80 radio commercials
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