Jason can wax the family car in 60 minutes while his brother kevin can wax the car in 40 minutes how long would it take jason and kevin to wax the car together

you know it has to be half the work for each person. I did 60 divided by two and 40 divided by two. add them both together its 50

50 :D

glad to help

< 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⭐

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong