Of the 800 employees of company x, 70 percent have been with the company for at least ten years. if y of these "long-term" members were to retire and no other employee changes were to occur, what value of y would reduce the percent of "long-term" employees in the company to 60 percent?

80 employees

Step-by-step explanation:

Data: 800 employees

         70% are "long terms" members

First we need to calculate how many are that 70% by using a rule of three:

We are asking the  number of employees to reduce this 70% long term to 60% long term. So we calculate how many are that 60% by using a rule of three:

In order to reduce these long term employees to 60%, we calculate how many should retire:

y = 560 - 480 = 80 employees

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

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step-by-step explanation: