Answer:
20
Step-by-step explanation:
Assume n is the number of times she pick a skittle out of the bag
The probability she pick out red : 8/n
The probability she pick out yellow : 12/n
=> The ratio of red and yellow skittle : 8/n : 12/n = 8/12 = 2/3, means every 2 red skittles we have 3 yellow ones.
But we have 50 skittles, so the likely numbers of reds in the bag is = 2* = 20
Answer:
m arc EAC=280°
Step-by-step explanation:
see the attached figure to better understand the problem
step 1
<em>Find the measure of arc BC</em>
we know that
m arc EAC=m arc EAB+m arc BC ----> equation A
we have
m arc EAB=180° ----> because the line segment BE is a diameter
m arc AB+m arc BC+m arc CD=180° ----> because the line segment AB is a diameter
substitute the given values and solve for m arc BC
55°+m arc BC+25°=180°
80°+m arc BC=180°
m arc BC=180°-80°=100°
step 2
<em>Find the measure of arc EAC</em>
m arc EAC=m arc EAB+m arc BC ----> equation A
we have
m arc EAB=180°
m arc BC=100°
substitute
m arc EAC=180°+100°=280°
