Dwie proste przecinają się, tworząc kąty ostre i rozwarte. Miara kąta ostrego jest dwukrotnie mniejsza od miary kąta rozwartego. Oblicz miarę kąta rozwartego daje naj

Step-by-step explanation:

This problem is about two crossing line, when that happens, we have 4 angles, two acute and two obtuse, where adjacent angles are supplementary and vertical angles are equal.

We can form the expression

Where is an acute angle and is an obtuse angle.}

Using all the given information, we have

Solving for , we have

Therefore, the obtuse angle is 120°, which means the acute angle is 60°, because they are supplementary angles, as we said befor.

y=mx+b

step-by-step explanation:

m slope, b y-intercept

$15 each

step-by-step explanation:

$45/3 children= $15 each