Let ∠RTS=∠RST = a (say)
∠QUA=∠QSU= b(say)
then we know , at point S, a+40+b=180. so, a+b=140 we'll use this later.
consider trianglePQR, ∠P+∠Q+∠R=180
i.e.P+(180-2b)+(180-2a)=180
P+180+180-2(a+b)=180 ⇒P+180-2(a+b)=0 ⇒P=2(140)- 180=280-180=100
hence,answer is E
2-0/ -31 - -32
= 2-0/ -31 + 32
= 2/1
= 2
Given:
One lap around a parking lot = 3/10 mile
3/10 mile is 15% of the total distance Gregory ran.
To determine the total distance (in mile) that Gregory ran, we refer to the given percentage:
3/10 mile / 0.15 = 2 miles
The total distance that Gregory ran is 2 miles. <span />
Hola , la cantidad de las pelotas blancas es 1/4 es otras palabras 25 por ciento ya que 1 divido entre 4 es .25 , o sea hay 6 pelotas blancas ya que 25 por ciento mas 25 por ciento es 50 por ciento la mitad , entonces tienes que agregar 6 bolas.
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