x = number of hours
want to find probability (P) x >= 13
x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.
P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413
To convert that to percentage, multiply 100, to get 84.13%
X = number of flyers
50+0.05x=100
0.05x=50
x=1000 flyers
X+y=90
x<2y
x+y< 3y
but x+y=90
90<3y
⇒ y>30
for example y=31, then x= 59
y=32, x= 58
.............................................
y=40, x=50
Answer:
≈14.6014705087
Step-by-step explanation:
The square root of 185 is about 14.
Answer: 20 ounce
Step-by-step explanation: 1.29/16=0.080625 1.49/20=0.0745