20x+50=450
-50 -50
20x=400
Divide both sides by 20
X=20
Answer:
0.15
Step-by-step explanation:
Fp: frequency that the pitcher will throw exactly 4 pitches to a batter=15
Fa: frequency that the pitcher will throw any pitches to a batter=15+20+40+15+10=100
P=Fp/Fa=15/100=0.15
Answer:
-26.1 , -0.01 , 12% , 1/4 , 3-4
Step-by-step explanation: