two mechanics worked on a car. the first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together they charged $3150. What was the rate charged per hour by each mechanic if the sum of the two earned was $185 per hour? ​

< 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

⭐dhruv⭐

what are your numbers actually saying? they are spaced out.

ok it is easy it is 3