In a certain school, 80% of the students in first-year chemistry have had algebra. if there are 230 students in first-year chemistry, how many of them have had algebra?

184 students

Step-by-step explanation:

This is a simple question where we want to find 80% of 230.

Firstly, we have to convert 80% to decimal. For that, we have to divide by 100. Thus,

80% = 80/100 = 0.80

Now, to find 80% of 230, we have to multiply 80% (0.80) with 230 and do the math. Hence,

0.80 * 230 = 184

Thus,

we can say that 184 students have had algebra.

< 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⭐

i'm sure goog can you get that answer