Answer:
there are 1250 readers
Step-by-step explanation:
r = readers
4 percent of readers sent letter = 50 recieved letters
r * 4 percent = 50
r * .04 =50
divide by .04 on each side
r = 50/.04
r =1250
The probability is 2
1
10 = 4x+6
-4x = -10+6
-4x = -4
x = -4/-4
x = 4/4
x = 1